Lamborghini Aventador J Sold for 2.8M!

The Lamborghini Aventador J is unquestionably one of the fastest cars ever built. It sports a 6.5 liter, 700 horsepower, V12 engine with an ISR transmission and all-wheel drive. It's made mostly out of carbon fiber, including a patented material called "carbon skin" for the interior. The car is so intense that the driver must wear a helmet, though the car may be registered for road use, Lamborghini says. Vroooooom