Porsche Unleashes Its Fastest-Ever Cayenne

• Porsche is introducing a new high-performance Cayenne called the Cayenne Turbo GT.

• The beast’s 4.0-liter twin-turbo V8 develops 631 hp - 90 hp more than the Cayenne Turbo Coupe and torque is up from 567 to 626 lb.-ft.

• The newest Cayenne can hit 60 mph in 3.1 seconds and runs the quarter-mile in 11.6 seconds.

Remember the Porsche Cayenne that broke the Nürburgring lap record a couple of weeks ago? Porsche has filled in some blanks - and then some.

The car that turned a 7:38.9-minute lap is called the Cayenne Turbo GT. Its 4.0-liter twin-turbo V8 pumps out 631 hp - 90 hp more than the Cayenne Turbo Coupe and 626 lb ft, 59 lb ft more. The new Cayenne can accelerate to 60 mph in 3.1 seconds (!), complete the quarter mile in 11.6 seconds, and “achieves a top track speed of 186 mph, making it the quickest, and fastest production Cayenne ever offered by Porsche,” the company says.