Here are 10 of the world fastest cars available in the market (production models, as opposed to concept or modified cars) these are tested, measured and verified top speeds (theoretical speeds do not count).
1. Hennessey Venom GT: 270 mph (435 km/h), 0-60 mph in 2.5 seconds, has a 7.0 liter LS7 Turbocharged V8 Twin Turbo V8 Engine producing 1244 hp, with a price tag of $1,000,000 and up. The Venom GT is the fastest car in the world when tested again on February 14th, 2014 at NASA runway in Florida. The track was only 3.22 miles long, thus limiting it top speed to 270 mph. Congratulations!
2. Bugatti Veyron Super Sport: 268 mph (431 km/h), 0-60 in 2.4 secs. Aluminum, Narrow Angle 8 Liter W16 Engine with 1200 hp, base price is $2,400,000. After being the fastest car in the world for over 3 years from July 10, 2010, it is now in 2nd place as of February 14, 2014. In the past, the Bugatti Veyron lost the title to SSC Ultimate Aero on March 2007. However, Bugatti challenged the record in Germany on July 10, 2010 with the new Super Sport and reclaimed the title of the fastest car in the world at 268 mph. The original Bugatti Veyron had a top speed of 253 mph, priced at $1,700,000 with 1001 hp.
3. Koenigsegg Agera R: 260 mph (418 km/h), 0-60 mph 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. 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.
There is a tie for #4.
4. 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. 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).
4. 9ff GT9-R: 257 mph (413 km/h), 0-60 in 2.9 secs. The 4.0 Liter flat-6 Twin-Turbo Engine with 1120 hp, comes with a base price of $695,000. Based on the Porsche 911, the 9ff GT9-R 1120 hp version is limited to 20 units and the exterior may be modified to suit the owner.
5. Saleen S7 Twin-Turbo: 248 mph (399 km/h), 0-60 in 2.8 secs. Twin Turbo All Aluminum V8 Engine with 750 hp, base price is $555,000. Smooth and bad-ass. It will make you want to show it off non-stop.
6. Koenigsegg CCX: 245 mph (394 km/h), 0-60 in 3.2 secs. 90 Degree V8 Engine 806 hp, base price is $545,568. Made in Sweden, it is the older brother of the Agera R, only losing to 6 other supercars in the world.
7. McLaren F1: 240 mph (386 km/h), 0-60 in 3.2 secs. BMW S70/2 60 Degree V12 Engine with 627 hp, base price is $970,000. The fastest car in the 20th century with doors that looks like bat wings. Maybe Batman needs to order one and paint it black.
8. Zenvo ST1: 233 mph (374 km/h), 0-60 in 2.9 secs. Twin-Charged 7.0 liter V8 Engine forging 1,104 hp. Base price: $1,225,000. The first Supercar from Zenvo Automotive, a Danish sports car company in pursuit of speed and perfection. This 100% Danish made supercar is limited to 15 units and the company even promised "flying doctors" to keep your baby functioning.
9. Pagani Huayra: 230 mph (370 km/h), 0-60 in 3.0 secs. Twin TurboCharged 6.0 liter V12 Engine from Mercedes AMG. It pumps out 720 horsepower to go with its 738 lb ft of torque. It comes with a seven speed auto-manual transmission. Pagani gives the name after the legendary Incan god of wind, Huayra-tata. The starting price is at £849,000, or $1,273,500.
Two at 10th place at 225 mph.
10. Gumpert Apollo: 225 mph (362 km/h), 0-60 in 3.0 secs, 4.2 liter V8 Engine that houses 650 hp. Base price: $450,000. Gumpert claims that the Apollo was designed such that it could drive upside-down in a tunnel with speeds at 190 mph or above. Of course, no one has tested this yet.
10. Noble M600: 225 mph (362 km/h), 0-60 in 3.7 secs. Twin-turbocharged 4.4-liter V8 Engine with 650 hp. Base price is $330,000. The Noble M600 also happens to be a very cool car. Its inconspicuous design sports a slender and contoured body which does not scream out for attention at every second of the day.