In the Fast & Furious series. Sure, apparently all of these kids have years of experience, tools, and facilities to do all this work on their cars....and they apparently also have the software and computer tech to meticulously look at optimal engine performance and such....

But apparently they don't understand basic physics or the law of conservation of momentum or anything like that....like if you jump from a car going 90mph, your body is actually traveling at (roughly) 90mph...and should you hit anything...you will splat. Not just get a mild headache and an arm in a splint.

~Jeordam