View Poll Results: Is the advertisement true or false?

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  • Yes, in that scenario a Lexus IS350 can do that

    17 62.96%
  • No, Impossible

    10 37.04%
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Thread: Cool Lexus Gravity Ad

  1. #16
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    Quote Originally Posted by Mr.Tiv
    And there would be less surface area to create drag that way, which makes that observation seem even more valid.
    also not necessarily true... drop a piece of paper, and notice that it prefers to fall flat side down. therefore falling slower than if it is dropped edge side down.
    Honor. Courage. Commitment. Etcetera.

  2. #17
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    It's a commercial everything is possible. Lexus just wanted the "wow" factor anyway.
    John says:
    so i had to dump acid into the block tank today
    i'm afraid to fap
    cause i got it on my hands

  3. #18
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  4. #19
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    Bring back the Skyline threads, all is forgiven.
    PPC - Put a V8 in it!

  5. #20
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    One thing's for sure - the black Lexus decellerates faster than the grey one

    Pity we didn't get to see its level of fit 'n finish after the landing

  6. #21
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    My guess would be "not good".
    PPC - Put a V8 in it!

  7. #22
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    Quote Originally Posted by nota
    Pity we didn't get to see its level of fit 'n finish after the landing
    Interesting to note that they block the view of the car landing with the car on the ground.

    On a vaguely related note, falling cars, terminal velocities and gravity completely aside, is it me or does the ground-based IS actually look really fast? I appreciate it's got 300 or so ponies, but the launch in particular looked damn quick.

    God damn bulls**t advertising...

  8. #23
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    Quote Originally Posted by cmcpokey
    not necessarily. its actually more a function of its aerodynamics. it would all depend on the airflow around the car influencing its direction of fall. weight would have little to do with it because when in a freefall, the body is weightless.
    I think the point is that the weight distribution will will affect how the vehicles falls, that is whether it rotates or remains relativity stable.

    As far as, the advert is concerned after seeing it on TV I just assumed it was BS. Giving it more thought would indicate this is probably true.

    If you assume the car falls undercarriage first the entire time, you could assume the car is more or less a flat plate. That being said a flat plate with a Cd of 1.3 weighting 3400lbs has a terminal velocity of approximately 140 MPH. The car has an electronically limited top speed of 142 MPH.

    So the free falling car will have a higher initial acceleration and approximately same top speed. Therefore it will have a larger velocity profile and travel a distance of 4,000 ft faster than the car on the ground.
    "In theory, theory and practice are the same. In practice, they are not."

  9. #24
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    Cool Lexus Gravity Ad

    http://video.google.com/videoplay?do...avity+ad&hl=en

    I don't think it was a standing start, though. Still, very cool.
    "Racing improves the breed" ~Sochiro Honda

  10. #25
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    I always wanted to do the math and make sure Lexus wasn't bullshitting us like most companies do but I never have the patience.
    It has to sustain about 9.8 m/s^2 for 4000 ft., and I personally don't believe it. And if it is true, I'm sure most other competitors can brag their cars 'defy' gravity as well.
    TOYNBEE IDEA IN KUBRICK 2001 RESURRECT DEAD ON PLANET JUPITER

  11. #26
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    Hmm. 9.8m/sec is a little over 32 ft/sec. So That would mean a 60ft time of about 2 sec. But then it would need to sustain that acceleration or better to beat the falling car to 4000ft. I really don't see a car like that sustaining that kind of acceleration over that much distance.

  12. #27
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    Well it depends on if the others have thought to put it that way before..i'm also too lazy to do the math myself but i think it is possible seeing as how there was a rolling start, i just don't think that in the ad it was an actual test run, the final shot when the one on the ground nicks past the falling one, it's way too close for them to risk the life of a driver, I'm sure they calcualted the possibility and it ould theoretically happen but that the final ad is made up of several shots and then the stunt is done with special effects to ensure that the car passes the other safely w/o being hit..makes the most sense
    Be polite, Be professional, Be prepared to kill...

  13. #28
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    You guys up top have to take drag into effect.
    Rockefella says:
    pat's sister is hawt
    David Fiset says:
    so is mine
    David Fiset says:
    do want

  14. #29
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    Quote Originally Posted by Esperante
    I always wanted to do the math and make sure Lexus wasn't bullshitting us like most companies do but I never have the patience.
    It has to sustain about 9.8 m/s^2 for 4000 ft., and I personally don't believe it. And if it is true, I'm sure most other competitors can brag their cars 'defy' gravity as well.
    You forgot to account for the wind resistance of the falling car, so it wouldn't actually be an average of 9.8m/s^2, rather much less Anyway, Lexus IS350s can accelerate to 100km/h in less 0.2 secs if the acceleration of my 250 is anything to go by. Lexus IS FTW

    Edit: Damn you Rockefella for beating me to it.
    - IS250fied -

  15. #30
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    Quote Originally Posted by fa22_raptor
    Edit: Damn you Rockefella for beating me to it.
    I'm fast, very fast.
    Rockefella says:
    pat's sister is hawt
    David Fiset says:
    so is mine
    David Fiset says:
    do want

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