Fastest automobiles available in North America right now.

2011 Bugatti Veyron 16.4 Super Sport - 268 mph

You can do a lot of things with $10,075. But if you want to own the $2.7 million Bugatti Veyron 16.4 Super Sport, currently the fastest car in the world, that's about the price you'll pay for every mile-per-hour the car is capable of. The Veyron's astounding price tag is matched only by its outrageous top speed, a fully-documented and verified 268 mph. The 1,200-hp French-built Bugatti set the new standard in supercar bragging rights last summer, at the sprawling Ehra-Lessien test facility owned by the firm's parent company, Volkswagen. The Veyron Super Sport features larger turbochargers and intercoolers fitted to the quad-turbo W-16 engine. Additional bracing, extra cooling ducts and special aerodynamics are fitted to the Super Sport, so that safety and stability are not sacrificed for top speed.

http://autos.yahoo.com/articles/autos_content_landing_pages/1631/faster-than-200-mph/