#2 is a tie at 260 mph!
2. Hennessey Venom GT: 260 mph (418 km/h), 0-60 in 2.5 seconds, has a 6.2-liter LS9 Turbocharged V8 Twin Turbo V8 Engine producing 1200 hp, has a price tag of $950,000. The Venom GT has yet to be tested and proven, but could possibly hit a top speed of 275 mph. This might just be the Veyron Super Sport's closest competitor!
2. Koenigsegg Agera R: 260 mph (418 km/h), 0-60 in 2.9 secs. 5.0-liter V8 Engine with twin turbo’s, housing 1099 hp. Base price is $1,600,000. If you're into snow sports, the Agera R can be fitted with a Ski Box as well as winter tires, not that I would take one on a ski trip or anything like that. While the Agera R has a massive theoretical top speed, the current tested top speed is 260 mph. Expect this snow car to be the Bugatti's arch enemy for the next 5 years.
Also a tie for #3.
3. SSC Ultimate Aero: 257 mph (413 km/h), 0-60 in 2.7 secs. Twin-Turbo V8 Engine with 1183 hp, base price is $654,400. Tested in March 2007 by Guinness World Records, The SSC Ultimate Aero was the fastest car in the world from March 2007 to July 2010. On March 2011, the Koenigsegg Agera R also surpassed it, forcing this American made car to the #3 spot. Shelby SuperCars will continue their quest to reclaim the fastest car title, and their new SSC Tuatura might do the job (we'll just have to wait).
3. 9ff GT9-R: 257 mph (413 km/h), 0-60 in 2.9 secs. 4.0 Litre V6 Twin-Turbo Engine with 1120 hp, base price is $695,000. Based