Our Terms of Service and Privacy Policy have changed.

By continuing to use this site, you are agreeing to the new Privacy Policy and Terms of Service.

2 of 6
BACKNEXT
Lamborghini
Lamborghini has done some research into hybrid powertrains but most of their focus has been on weight reduction. An extreme example would the Sesto Elemento concept car, so-named because it's made almost entirely from carbon, the sixth element on the periodic table. Even the wheels and suspension are made from carbon fiber, a lightweight but very strong material that's also outrageously expensive.


NEXT: Porsche
Last updated March 15 2011: 6:51 AM ET
Find Your Next Car
More Galleries
The stock market's wild week in 6 pictures It was the wildest week in stocks in recent memory. Here's photos and CNNMoney's tweets of reactions to the panicked selling on Monday and Tuesday, which gave way to a mad buying scramble on Wednesday and Thursday. And then...a selloff on Friday again. More
How New Orleans is learning to live with water After Hurricane Katrina, the city of New Orleans had to reinvent the way it manages water and protects itself from future storms. More
Your degree will earn you the most from these colleges Art majors can make big bucks, too. Find out which school has the highest paid grads in your major. More

Special Offer