Super extreme auto - gotta watch this more than once, and be sure to watch it to the end!! http://ow.ly/1DjcG

 

It's fake, but pretty easy to do, as Top Gear has shown. If v^2/r > g, you should have no problem.

 

^Agreed. its actually kind of funny they show a guy doing so much calculations about it. The hardest part would be to get the radial component of acceleration and time the car so it completes a perfect helical path to get off the tunnel on the other side..

 

pretty easy??

 

i saw the discussions of whether it was fake or not, but could not tell that there was a conclusion or proof that this one is fake. even it fake, its still pretty cool!!

 

pretty sick!

 

 

Probably fake but what a bitchin car!!

 

 

Yeah. One equation's all you need. Your lateral speed squared divided the radius of the tunnel must be larger than 9.81 m/s^2 in order to maintain contact with the tunnel as you do the loop.