The Bugatti Veyron Super Sport is the world's fastest production car, with an unchallenged top speed of 268 mph. Other cars may be faster in certain ways, but it's the king until someone knocks off its crown.
Remember the playground bully? The kid twice your size who repeated first grade just so he could be larger and stronger? In the automotive world, that bully's name is Bugatti, and I just saw him back down from a fight with something even more menacing.