The 1991 Porsche 911 Turbo has evolved considerably since it was introduced more than 15 years ago as one of the earliest turbocharged production cars on the market.

The successor to this legendary powerhouse features an all-new body and chassis, a hefty boost in horsepower and many refinements for 1991.

Powered by a 3.3-liter, six-cylinder, horizontally opposed turbocharged engine, the 911 Turbo is the quickest 911 ever and can accelerate to 60 mph in a breathtaking 4.8 seconds. Top track speed is 168 mph.

The 911 Turbo is rated at 315 horsepower at 5,750 rpm with maximum torque 332 ft. lbs. at 4,500 rpm.

This boost in power comes from refinements to the Turbo's air intake system, a new exhaust system with an optimized turbocharger and a larger air-to-air intercooler. The electronic ignition system now has full computer mapping characteristics to optimize fuel consumption, minimize emissions and increase power. It operates in conjunction with the Bosch K-Jetronic fuel injection system.

Production of the new Turbo is scheduled to begin in October with 600 units allocated for the U.S. market. The Turbo will be built only in the Coupe body style.

This newest generation 911 Turbo has a more aerodynamic body than its predecessor with newly contoured bumpers front and rear yet the recognizable 911 silhouette is evident in its aggressive wheel arches and the familiar fixed "whale tail" rear spoiler The new front and rear spoiler along with an aerodynamic undertray help improve handling and traction by reducing aerodynamic lift forces.

A striking new five-spoke wheel design, reminiscent of the Porsche 959, debuts on the new 911 Turbo. Light-alloy wheels are larger than on the previous Turbo, 17 inches in diameter, and seven inches wide in front and nine inches wide in the rear for well-balanced road behavior.

Suspension changes include a revised front axle assembly with triangulated wishbone control arms and coil springs to help improve handling. Rear suspension now has an automatic toe correction feature that is different in design but similar in function to the Weissach rear suspension of the Porsche 928. The rear-wheel control arms have been uprated, and front and rear are matched to the new suspension. Progressive type rear springs have been developed from Porsche's extensive race engineering experience.

The newest generation five-speed transmission has been revised with sportier gear ratios.

Porsche is the only automobile manufacturer to include an airbag supplemental restraint system for both driver and front seat passenger as standard equipment on every car sold in the U.S. Other standard safety features on the new 911 Turbo include an Anti-lock Braking System and ZR-rated, steel-belted radial tires.

Porsche's 1991 911 Turbo will be equipped with air conditioning with automatic climate control, reclining leather bucket seats with electric height adjustment, a Blaupunkt "Stuttgart" AM/FM digital stereo cassette radio with eight loudspeakers, electric sliding sunroof, power windows, interior light with delayed shut-off, tinted glass all around with graduated windshield tint, heated windshield washer nozzles heated outside mirrors and one-key central locking and alarm system with light emitting diodes in the door lock buttons to show the alarm is engaged.

Every Porsche model is covered by a transferrable, two-year bumper-to-bumper limited vehicle warranty with unlimited mileage and a l0-year rust perforation warranty.