The best thing i have ever seen:
http://www.ebaumsworld.com/2006/09/amazing-car.html
MEGA LOLOLOLOL!!!
If i had 1000000000$ and the world polution problem would be solved i would get a car like this but it would be a limousin hummer with 10 doors, all of them would have doors like that. It would also have giant speakers and it would jump like a pimp’s car. It would also have spinners on the wheels and a spinner exaust tip. 
!! LOL
(this “dream” may seem dumb but it is the best thing ever period!!!)