Jaguar's new road-going track star has just become the world's quickest four-door production sedan at Germany's famed Nürburgring Nordschleife. The Jaguar XE SV Project 8 set a new lap record on the "Green Hell" for a production sedan: 7 minutes and 21.23 seconds.

The British beauty doesn't quite measure up to the Subaru WRX STI Type RA NBR Special, which achieved a time of 6:57.5 seconds, but that car has too many modifications to qualify as a production car.

The Project 8 packs a 5.0-liter supercharged V-8 with 592 hp and 516 lb-ft of torque. Jaguar estimates a 0-60 time of just 3.3 seconds and a top speed of 200 mph.

Although the Project 8 starts life as an aluminum body shell of the XE, it's very different from its more pedestrian counterpart. Only the roof panel and front door skins are left unchanged, and three quarters of the mechanical hardware is new. Carbon fiber makes up the front bumper, hood, side skirts, adjustable front splitter, rear bumper, and rear diffuser. The use of this material helps keep weight down to 3,847 pounds.

Jaguar is limiting production of the XE SV Project 8 to 300 units worldwide. It will be available in the U.S. next year with prices starting at $188,495.