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  Mercedes-Benz 300 SLR Roadster
 

  Article Image gallery (88) Chassis (7) Specifications User Comments (1)  
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Country of origin:Germany
Produced in:1955
Numbers built:7
Internal name:W196S
Predecessor:Mercedes-Benz 300 SL Competition Coupe
Author:Wouter Melissen
Last updated:July 24, 2015
Download: All images

Engine
Configuration M 196 S Straight 8
Location Front, longitudinally mounted
Weight 234 kilo / 515.9 lbs
Construction silumin block and head
Displacement 2,982 cc / 182 cu in
Bore / Stroke 78.0 mm (3.1 in) / 78.0 mm (3.1 in)
Compression 9.0:1
Valvetrain 2 valves / cylinder, DOHC, with desmodromic valve operation
Fuel feed Bosch Direct Fuel Injection
Lubrication Dry sump
Aspiration Naturally Aspirated
Power 310 bhp / 231 KW @ 7,400 rpm
Torque 311 Nm / 229 ft lbs @ 5,950 rpm
BHP/Liter 104 bhp / liter

Drivetrain
Body electron
Chassis steel tubular spaceframe
Front suspension double wishbones, torsion bars, telescopic shock absorbers
Rear suspension swing axles, torsion bars, telescopic shock absorbers
Steering worm-and-sector
Front Brakes drums, in-board, 350mm (13.8 in)
Rear brakes drums, in-board, 275mm (10.8 in)
Gearbox 5 speed Manual
Gear ratios 2.67:1
1.75:1
1.43:1
1.07:1
0.83:1
Final drive 2.22:1
Clutch Dry, single plate
Drive Rear wheel drive

Dimensions
Weight 901 kilo / 1,986 lbs
Length / Width / Height 4,300 mm (169.3 in) / 1,740 mm (68.5 in) / 1,100 mm (43.3 in)
Wheelbase / Track (fr/r) 2,370 mm (93.3 in) / 1,330 mm (52.4 in) / 1,380 mm (54.3 in)
Fuel tank 265 Litre (70 Gallon US / 58.3 Gallon Imperial)
Tyres (fr/r) 6 x 16 / 7 x 16

Performance figures
Power to weight 0.34 bhp / kg
Top Speed 300 km/h (186 mph)

Race history
Major wins
1955 Mille Miglia (Stirling Moss / Denis Jenkinson in 0004/55)
1955 Tourist Trophy (Stirling Moss / John Fitch in 0004/55)
1955 Targa Florio (Stirling Moss / Peter Collins in 0004/55)

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  Article Image gallery (88) Chassis (7) Specifications User Comments (1)