World's Fastest Production Car, Ultimate Aero TT

The American-built SSC Ultimate Aero TT is a supercar built by Shelby Super Cars (SSC) in order to rival the new Bugatti Veyron with speeds of over 250 mph (400 km/h) and a 0-60 mph time of 2.78 seconds (for the Ultimate Aero TT version). The company and vehicle are the brainchilds of Jerod Shelby, who spent over seven years designing the Aero. The car is the world's fastest production car at 256.15 mph (412.233 km/h), a speed reportedly achieved on September 13 2007 in West Richland, WA. The results of this test, verified by Guinness World Records on October 9 2007, gave the SSC Aero the world's fastest production car title.
Source the wikipedia
picture of Ultimate Aero TT
Record-Breaking Times

0-60 mph:	2.78 seconds
1/4 Mile:	9.90 seconds at 144 mph
Top Speed:	257.41 MPH / Official Average: 256.15 MPH
Skidpad:	1.05 g
0-100mph-0:	11.66
60mph-0 (braking):	103 feet

The Aero's styling includes the use of butterfly doors similar to the ones found on the Mercedes-Benz SLR McLaren, and the Ferrari Enzo, to name a few. It uses carbon fiber and titanium extensively throughout the car, keeping the weight down to 1233 kg (for the standard Aero). For the Ultimate Aero, weight is further reduced to 1179 kg by marking the navigation system, 10-speaker audio/CD/DVD system, video/DVD screen, and back-up camera as optional equipment; and removing air-conditioning and any trunk space altogether.

Ultimate Aero's engine now 6.35-litre (387.2 cu.in.), rated at 1,180 bhp (880 kW) @ 6950 rpm and 1,094 ft·lbf (1,483 N·m). torque @ 6150 rpm, supercharger is replaced by twin turbocharger with cab adjustable boost pressure. The car is designed to use 91 octane.

The 6-speed transmission is readjusted to increase car's top speed to 273.75 mph (437 km/h) @ 7200 rpm, although actual run to such extremes have yet to be made.

Wheels on base model is 18-inch front and 19-inch rear, while Ultimate Aero TT has wheels an inch bigger on both sides.

Coefficient of drag are 0.371 and 0.357 for base and ultimate models respectively .
Engine

Type:	Block and Heads (V-8)
Displacement:	387.2 cu.in.
Bore x Stroke:	4.125 x 3.620"
Compression Ratio:	8.975:1
Horsepower:	1183 bhp @ 6950 rpm
Torque:	1094 lb./ft. @ 6150 rpm
Redline:	7200 rpm
Fuel Injection:	Electronic Sequential Port
Weight:	422 lbs.
Oil:	SAE 5W/30 Fully Synthetic Racing
Induction System:	Sequential, multi-port fuel injection, Twin Turbo Chargers. Dual-Water to Air Intercoolers.
Fuel:	Premium Unleaded - 91 Pump Octane

SSC Ultimate Aero TT record run-257mph/413kmh