Ultimate Aero is now named Ultimate Aero TT.
The engine in the base Aero model is same as last year, but 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 .
2007 models are heavier, with base model at 2850 lb, and Ultimate version at 2750 lb. Unlike previous year, both models have navigation system, 10-speaker audio/CD/DVD system, video/DVD screen, back-up camera, air-conditioning and trunk space as standard equipment.
The first production 2007 Ultimate Aero TT car was sold on eBay for US $431,100. Later cars are expected to cost US $585,000. Only 24 Ultimate Aero TT are to be produced between 2006-2007.
The Ultimate Aero TT made its international debut on the International Show Circuit in November 2006, culminating with the world record top-speed competition held in Wolfsburg, Germany in May 2007.