Porsche first introduced a 911 Turbo to North America for model-year 1976. The Ú.S.-spec version of that car produced 234 horsepower and could accelerate from 0 to 62 mph (0 to 100 km/h) in just under six seconds — extremely fast for the time. Today, with a 415-horsepower twin-turbo engine, all-wheel drive, and exclusive styling, the 2001 911 Turbo takes its place at the top of the Porsche model line and in the top echelon of the supercar category. The new 911 Turbo can accelerate from 0 to 62 mph (0 to 100 km/h) in just 4.2 seconds. On the test track, the car can achieve a top track speed of 189 mph (305 km/h).
Únique design features include bi-xenon headlight clusters and a two-piece rear stabilizer wing. The upper portion of the wing automatically raises at speeds above 75 mph (120 km/h) and lowers at speeds below 50 mph (80 km/h). Derived form the Porsche GT1 racecar, the 3.6-liter, horizontally opposed six-cylinder engine features dual intercoolers and produces 26.8 psi (1.85 Bar) maximum boost-more than double any previous 911 Turbo.The new engine sustains 415 lb.-ft. (560 Nm) of peak torque from 2,700 rpm to 4,600 rpm. Power drives through a standard six-speed manual transmission, and, for the first time in a 911 Turbo, Porsche offers the Tiptronic S five-speed automatic transmission as an option. Also derived from the GT1 racecar, one-piece, four-piston brake calipers reduce unsprung weight and heat and feature 13-inch vented, cross-drilled discs front and rear.
The Porsche Ceramic Composite Brake (PCCB), available as an option in the fall of 2000, will set new standards for brake response, fade resistance and service life. The standard Porsche Stability Management system (PSM) can detect a loss of grip at the front or rear and reduce instability by applying braking to individual wheels and, if necessary, altering engine power.Source - Porsche AG