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Thread: Lotus Exige (Series 2) 2004-2011

  1. #151
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    Lotus Exige S2 270E Trifuel

    Lotus Engineering, the world renowned automotive consultancy division of Lotus, unveils its latest development towards carbon neutral road transport at the 78th Geneva International Motor Show. The Lotus Exige 270E Tri-fuel is the most powerful road version yet of the Exige (0-60 mph / 96 kph in 3.88 seconds, a top speed of 158 mph (255 km/h), 270 hp (201 kW / 273 PS at 8000 rpm) and it runs on any mixture of gasoline, bioethanol and methanol. Emerging technologies will allow alcohol fuels such as methanol, already a proven internal combustion fuel, to be made synthetically from CO2 extracted from the atmosphere.

    The Exige 270E Tri-fuel is part of Lotus’ research to understand the complex combustion process involved in running on mixtures of alcohol fuels and gasoline, which will be important for a successful transition from today’s fuels to the sustainable, synthetic fuels of the future.

    This research is just one aspect of Lotus Engineering’s ground-breaking work on environmentally-friendly vehicles. It is involved with a number of electric vehicle projects, has successfully integrated hybrid technologies into vehicles such as its EVE demonstrator, and recently announced results on a collaboration with Continental Division Powertrain on the Low CO2 downsized three-cylinder engine. The research into sustainable alcohols is progressing at Lotus’ Hethel headquarters in Norfolk, UK and involves input from the Royal Society of Chemistry’s Alternative Fuel Symposium Series, the Low Carbon Vehicles Innovation Platform, developed by the Technology Strategy Board and direct discussions with the University of Sheffield.

    Methanol (CH3OH) can be produced synthetically from CO2 and hydrogen. Ultimately, emerging processes to recover atmospheric CO2 will provide the required carbon that can entirely balance the CO2 emissions at the tailpipe that result from the internal combustion of synthetic methanol. The result is that a car running on synthetic methanol, such as the Exige 270E Tri-fuel would be environmentally neutral.

    Lotus Engineering’s Lotus Exige 270E Tri-fuel technology demonstrator illustrates how easy it is for synthetic methanol to be embraced over time as a future fuel for road transport. The Exige 270E Tri-fuel, with its supercharged 2ZZ-GE VVTL-i engine, could be the forefather of a new generation of conventionally driven cars that have the potential to be environmentally-neutral.

    Synthetic methanol – a green fuel?
    Synthetic methanol’s green credentials arise from its potential to be completely CO2 neutral. The most likely future mass-production of the fuel is by using electrochemical techniques to combine oxygen, hydrogen and carbon:
    · Carbon could be sourced from carbon dioxide recovered from the atmosphere using either large scale extraction facilities or biomass.
    · Oxygen would be taken from the atmosphere already contained in the CO2 molecule.
    · Hydrogen would be acquired through the electrolysis of water; challenges remain in the electrical power required; in a green future, this could be supplied from renewable sources, an issue already being addressed by supporters of hydrogen as a fuel.
    · Synthetic methanol can also be supplemented by production from biomass sources where properly sustainable.
    · Methanol can be produced easily from a wide variety of feedstocks.

    Synthetic methanol – How to make it?
    Techniques for the production of synthetic methanol through the extraction of atmospheric CO2 are well developed and understood but are not being employed on an industrial scale. An early solution would be the co-location of a nuclear or hydroelectric powerplant with a conventional power station – the hydrogen generated by hydrolysis of water would be combined with CO2 from either fossil or biomass sources to make liquid methanol. In the future, large volumes of CO2 could be extracted directly from the atmosphere.

    Synthetic methanol – easy to adopt?
    As well as being green, another crucial advantage of synthetic methanol is that it can be introduced relatively simply. As the Exige 270E Tri-fuel demonstrates, only small changes to engines are required, such as:
    · Sensors to detect alcohol content
    · Modified software for engine management control driving alcohol/gasoline, flex fuel and fuel systems operations.
    · Fuel lines compatible with alcohol fuels
    · Higher flow rate fuel pump and injectors
    · Fuel tank material, compatible with alcohol
    In addition, as a liquid, which is miscible with gasoline, synthetic methanol can be transported; stored and sold to motorists exactly as today’s liquid fuels are, with only minor modifications.

    Synthetic methanol – a performance fuel?
    Synthetic methanol is better suited to spark-ignition combustion than today’s liquid fuels, delivering better performance and thermal efficiencies, due to its higher octane rating giving it better resistance to ‘knock’. As a result, it is a fuel that will benefit the motorists in terms of driving experience. For example, the Exige 270E Tri-fuel is quicker to 60mph from standstill and has a higher top speed when using 100% synthetic methanol fuel than with conventional gasoline. Synthetic methanol is also ideally suited to pressure-charging, a trend already well underway as car makers look to downsize engines to reduce fuel consumption.

    Synthetic methanol - the way forward
    Lotus Engineering regards sustainable alcohols as the third step in a process towards carbon neutral driving. The current E85 (85% ethanol and 15% gasoline) based movement represents the first stage in building momentum towards sustainable fuels. The valuable learning from the current bioethanol vehicles on the market means that synthetic methanol would easily be managed technically and within the existing transport, storage and distribution infrastructure. The steps towards a synthetic methanol economy for transportation fuels could be as follows:

    1st Generation: there is a handful of current bioethanol models on sale around the world. These cars run on E85 bioethanol, which is produced from valuable arable crops (food). This is unsustainable in the short and medium term as global demand for fuel will outstrip the supply available from farmland to the detriment of food production, but is a necessary step in the evolution of the market.
    2nd Generation: the next generation bioethanol fuels will be based on biomass waste, for example crop stubble, waste vegetable-based oils and any biodegradable waste matter. This is thought also to be unsustainable in the medium to long term as the required volume of biomass increases beyond that which can be supplied.
    3rd Generation: sustainable alcohols such as synthetic methanol can be introduced due to its miscibility with ethanol and gasoline. This fuel can be produced from entirely sustainable, readily available inputs, with an environmentally neutral overall impact.
    4th Generation: Direct Methanol Fuel Cells: over the longer term, sustainable alcohols in internal combustion will facilitate the soft introduction of direct methanol fuel cells as a long term sustainable future fuel. This will only be possible with pure methanol pumps on the forecourt which internal combustion engines can bring forward due to their ability to consume a mixture of fuels.

    The Lotus Exige 270E Tri-fuel
    The Lotus philosophy is all about performance through light weight. The Exige 270E Tri-fuel is built to the lightest specification possible without resorting to expensive and rare materials. The performance improvements of using synthetic alcohol have been made through increasing the power of the engine without increasing its weight and therefore the overall weight of the car.

    The Engine
    The heart of the Exige 270E Tri-fuel is a Roots-type supercharger (with a sealed-for-life internal mechanism meaning that it does not require the use of the engine’s oil) and air to air intercooler attached to the tried and tested 4-cylinder, 1.8 litre 2ZZ-GE VVTL-i engine. Using a development of the supercharger and intercooler package from the Exige S, the Exige 270E Tri-fuel has peak power of 270 hp (201 kW / 273 PS) at 8000 rpm, 184 lbft (260 Nm) of torque at 5500 rpm, up by 51 hp (38 kW, 52 PS) or 19% and 25 lbft 45 Nm or 14% over the standard gasoline Exige S. Maximum engine speed is 8000 rpm (8500 rpm transient for up to 2 seconds).

    The low carbon number alcohol fuels methanol and ethanol give more power when burned in the engine than conventional gasoline (petrol) fuel. The performance benefits come largely from the high heats of vaporization of methanol and ethanol, which give strong charge-cooling effects, and the increased octane ratings. There are other secondary thermodynamic effects. Methanol's higher heat of vaporization leads to a slightly higher performance relative to ethanol. All charge air ducting has been kept as short as possible with large diameter pipes making sure that the bends in these ducts are not too tight, to the benefit of throttle response and efficiency. The Roots-type Eaton M62 supercharger is turned by the crankshaft, and has an integral bypass valve for part load operation.

    The 2ZZ VVTL-i engine has two cam profiles – a high speed cam and a low speed cam. The seamless switch point between these two cams is completely variable depending upon driving conditions and engine load. This gives the Lotus Exige 270E Tri-fuel a smooth and linear surge of power from idle speeds all the way to the maximum 8500rpm. An electronic drive-by-wire throttle ensures the quickest engine response possible whilst keeping the emissions as clean and as low as possible, to meet relevant legislative demands. Six fuel injectors have been fitted to increase fuel flow to the engine at normal and higher engine speeds and loads.
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    I am easily satisfied with the very best.

    "It is a very good looking car, If you have cataract" - JC about the Alpine A610

  2. #152
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    Lotus Exige Scura

    Lotus Exige Scura

    Lotus Cars unveils its latest special edition - the Exige Scura, so called due to its dramatic matt black and carbon fibre theme, at the Tokyo International Motorshow on 21st of October 2009.

    Translated as ‘dark’ from Italian, the name ‘Scura’ reflects the stealth character of this already fierce looking Lotus and its stunning soft-feel matt black paint finish. Limited to just 35 cars globally, this Exige evokes a desire to ‘indulge your dark side’. This is a serious looking car and enhancements to performance and a reduction in weight from the production level Exige S means that the Exige Scura demands to be driven by a serious driver.

    Contrasting high gloss ‘Phantom Black’ triple stripes run the length of the car and a carbon fibre front splitter, oil cooler inlet vanes, side airscoops and rear spoiler enhance the stunning distinction between the different textures and exaggerate the tactile quality of the velvety touch to the matt black paint finish.

    Luke Bennett, Director of Lotus Cars said, “The Exige Scura is a stunning vehicle which offers an adrenaline fuelled experience and is a real head-turner! Our Exige customers choose Lotus because we deliver thrilling performance and dynamic design and this special edition fits the bill on both counts.”

    Continuing the dark ‘Scura’ appearance into the interior, carbon fibre is used extensively to compliment the exterior theme and reduce weight. The seats and centre console are crafted from carbon fibre and the handbrake and gear knob have a special anodized treatment which leaves the metal with an anthracite colour finish. All carbon fibre components have been beautifully finished in high-gloss clear lacquer allowing the weave to remain exposed which gives the cabin a raw and racy ambiance.

    Whilst there is no doubt that this is a visually stunning car, the Exige Scura is not just about its looks – it begs to be taken on track, and its racing character encompasses poise, power and technology to make it a serious contender. Equipped with the most powerful engine in the Exige range and generating 260PS, the Exige Scura achieves a top speed of around 245 km/h and reaches 0-100 kmh in just 4.1 seconds.

    Other equipment fitted as standard to boost the Exige Scura’s track credentials include:

    Launch control to ensure optimum performance from a standing start
    Variable slip traction control, enabling the driver to tune the car to track surface conditions and their own driving style
    Ohlins 2-way adjustable dampers for personalised ride and handling characteristics

    Roger Becker, Vehicle Engineering Director, highlighted the performance of the Exige Scura, “There are very few cars in the world that turn in the performance of the Exige Scura without the penalty of very high fuel consumption and emissions. As with all Lotus sportscars we offer the best of both worlds – a zero to 100 km/h time of just over 4 seconds and a CO2 figure of 199 g/km; all this is down to light weight and a strict adherence to Lotus’ core brand values.”

    Considering the performance on offer, the Exige Scura boasts impressive all round fuel economy with an Official European Combined Cycle figure of 8.5 litres/100 km and 6.5 litres/100 km on the Official European Extra Urban Cycle and emissions of 199 g/km of CO2.

    Orders for the ‘Lotus Exige Scura’ will be accepted from 21 October 2009 in Europe, South Korea, Australia, South Africa, Thailand, Taiwan, Hong Kong, Singapore, New Zealand, Indonesia and Malaysia. This special edition will be available on the same basis in Japan known as the ‘Lotus Exige Stealth’.
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  3. #153
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    Lotus Exige Scura #2

    The Exige Scura in more detail

    0-100 kmh in 4.1 seconds and 199 g/km CO2
    Lotus Launch Control and Lotus Traction Control as standard
    The Lotus Exige Scura uses the 1.8 litre supercharged and intercooled 260 PS engine from the range topping Exige Cup 260, including the lightweight flywheel and lightweight supercharger pipework. Coupled with Ohlins 2 way adjustable dampers and Eibach Springs with variable height spring platforms, unique matt black lightweight forged wheels and super sticky Yokohama A048 LTS tyres, ride and handling is as expected for a Lotus!

    Lightweight carbon fibre components, including sports seats, interior centre console, front splitter, oil cooler inlet vanes, side airscoops and rear spoiler help to keep the weight to 10kg less than the Lotus Exige S (at just 925 kg).
    Lotus Launch Control and Lotus Traction Control – additions recommended for track driving Lotus Launch Control and Lotus Traction Control were originally developed for the Lotus Exige GT3 racing programme.

    The launch control allows the driver to determine the number of revs they wish to use during a standing start. Having programmed that limit, the driver then holds the throttle pedal down fully and sidesteps the clutch pedal for a very quick departure from the line. The clutch damper cushions the severity of the clutch to transmission engagement to minimise the stresses to the drivetrain. The launch control allows wheel-spin until 10 km/h (6 mph) to further reduce drivetrain stress, after which the traction control assumes its duties at the defined level set by the driver.

    As with launch control, the amount of traction control required can be dialled in from the driver’s seat and altered on the move to suit the characteristics of particular corners. The amount of traction control can be varied in over 30 increments from an optimum 7 percent tyre slip to completely inactive. The message display in the new instrument pack displays what degree of traction control is being currently utilised.

    Suspension

    To suit individual driving styles and road conditions, drivers will now be able to tune the Exige suspension with the Ohlins two-way adjustable dampers (which have 60 compression and 22 rebound settings) and ride height adjustment to reduce the ride height from 130 mm to 120 mm.

    Performance, Economy and Emissions

    The Lotus Exige Scura is capable of incredible track performance which and at the heart of its success is the aerodynamic package, which produces 42 kg of downforce at 160 km/h (100 mph) increasing grip and stability at higher speeds. This downforce, coupled with a top speed of around 245 km/h (152 mph) and a zero to 160 km/h (100 mph) in circa 9.9 seconds, 0 to 100 km/h in circa 4.1 seconds (0 to 60 mph in around 4 seconds), means that the Exige Scura is not only stunning to look at but a phenomenal performer too. Combined cycle fuel consumption is 8.5 l/100km and the CO2 emissions of 199 g/km.

    Engine

    The supercharged and intercooled engine in the Exige Scura has a maximum power output of 260 PS (257 hp) at 8000 rpm and a torque figure of 236 Nm (174 lbft) at 6000 rpm. This significant amount of extra power and torque over the production level Exige S together with the VVTL-i variable cam system ensures that there is a smooth and linear delivery of power from low engine speeds all the way to the maximum 8000 rpm (8500 rpm transient for 2 seconds). The supercharger (with a sealed-for-life internal mechanism meaning that it does not require the use of the engine’s oil) is run from the crankshaft and has an integral bypass valve for part load operation. Charge air (air under pressure from the supercharger) is cooled through an air-to-air intercooler (the air enters via the enhanced roof scoop) before being fed into the engine itself. All charge air ducting has been kept as short as possible with large diameter pipes to minimise restriction and maximise throttle response and efficiency. Four high capacity injectors and an uprated fuel pump add additional fuel under hard acceleration or continuous high speed driving – only on the track, of course!

    A lightweight flywheel is fitted (giving even greater flexibility and response to the gear change), a sports-type clutch plate and heavy duty clutch cover transfer the engine power and torque to the lightweight C64 six-speed gearbox (with an aluminium casing) – with the same perfectly spaced ratios as the Exige S. An Accusump (engine oil accumulator unit) is included in the whole package as an oil reservoir back-up for extreme track use ensuring that, under those conditions, the engine oil pressure remains constant.

    Recommended retail price (including VAT) is £45,000 (an additional £950 is charged for on the road costs. These include delivery, PDI, first service, number plates, first registration fee, valet, 12 months Road Fund Licence and a full tank of fuel.)

    Recommended retail prices of the standard road specification Lotus Exige Scura for the following markets (MSRP) (including transport, delivery, local taxes and first service but excluding registration, license plates and or a full tank of fuel):
    Belgium € 61.820,--
    France € 61.200,--
    Italy € 61.885,--
    Switzerland CHF 90.225,--

    Recommended retail prices of the standard road specification Lotus Exige Scura for the following markets (MSRP) (including local taxes but excluding transport, registration, license plates and or a full tank of fuel):
    Germany € 60.000,--

    Recommended retail prices for other Euro Zone Countries (MSRP) (excluding local taxes, transport, registration, license plates and or a full tank of fuel):
    Euro Zone € 50.420,--

    Paint Warranty

    The Lotus Exige Scura is painted in a ‘soft feel’ water borne matt black paint finish that is resistant to most normal forms of atmospheric attack provided the special cleaning and maintenance requirements as specified by Lotus are strictly adhered to. However due to the textured matt finish, fading or discolouration of all or part of the matt paint finish may occur during the early life of the vehicle and this is considered normal and is specifically excluded from any warranty given by Lotus. The special matt paint finish utilised on the Lotus Scura is provided with a limited warranty of the earlier of 12 months or 12,000 miles/20,000 km from the date of first registration of the vehicle. Please consult your Authorised Lotus Dealer for full details.

    Official European Combined Cycle = 8.5 litres / 100 km (33.2 mpg)
    Official European Extra Urban Cycle = 6.5 litres/100 km (43.5 mpg)
    Official European Urban Cycle = 11.9 litre/100 km (23.7 mpg)
    CO2 emissions = 199 g/km
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  4. #154
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    Lotus Exige Scura #3
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  5. #155
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    Lotus Exige Scura #4
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  6. #156
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    Like it SHame I can't fit
    "A woman without curves is like a road without bends, you might get to your destination quicker but the ride is boring as hell'

  7. #157
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    Keep the carbon fiber, lose the matte black. I'd probably take mine in red.


    Quote Originally Posted by Matra et Alpine View Post
    Like it SHame I can't fit
    I'm 6', 200 lbs and I was fine inside an Elise, even with my buddy in the passenger seat who's 6'3" 225; once you're in it's really not bad. Now getting in is a whole other story . . .
    "The Metric System is the tool of the Devil! My car gets 40 Rods to the Hogshead and that's the ways I likes it!" -Grandpa Simpson

  8. #158
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    Quote Originally Posted by NicFromLA View Post
    I'm 6', 200 lbs and I was fine inside an Elise, even with my buddy in the passenger seat who's 6'3" 225; once you're in it's really not bad. Now getting in is a whole other story . . .

    I've found getting OUT is more of an issue for men of our stature -6'3" 125Kg (275? pounds)


    On the subject of the car - the lotus is perhaps one of the few I find myself liking better in normal shades, not matte...
    Weekly Quote -

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  9. #159
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    Dear Santa. I've been a good boy this year, so...

  10. #160
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    Quote Originally Posted by Matra et Alpine View Post
    Like it SHame I can't fit
    Quote Originally Posted by NicFromLA View Post
    I'm 6', 200 lbs and I was fine inside an Elise, even with my buddy in the passenger seat who's 6'3" 225; once you're in it's really not bad. Now getting in is a whole other story . . .
    Quote Originally Posted by whiteballz View Post
    I've found getting OUT is more of an issue for men of our stature -6'3" 125Kg (275? pounds)


    On the subject of the car - the lotus is perhaps one of the few I find myself liking better in normal shades, not matte...
    Finally there's an advantage to being small...
    Lack of charisma can be fatal.
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  11. #161
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    I'm the same hight as 'ballz, albeit 12kgs lighter.

    I have no problems fitting, and as I have mastered the skill of standing upright (on most occasions) I also have no problems getting out.
    Chief of Secret Police and CFO - Brotherhood of Jelly
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  12. #162
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    yeah i have no problems walking in and out of this car, dunno what the rest of you are talking about.
    Andreas Preuninger, Manager of Porsche High Performance Cars: "Grandmas can use paddles. They aren't challenging."

  13. #163
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    shutup, your a girl.. A schoolgirl at that.
    Weekly Quote -

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  14. #164
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    Praying mantis style, I reckon I could fold into this.
    <cough> www.charginmahlazer.tumblr.com </cough>

  15. #165
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    wow, great. Thanks for sharing!

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