Find out more about the Mercedes-Benz CLK-GTR, and watch a new video walkaround of the vehicle, inside.

Mercedes has released an official video showing the Mercedes-Benz CLK-GTR.  The minute-long featurette is part of the automaker's Drive Magazine series on their video website.

Only 25 versions of the CLK-GTR were produced, five of which were roadsters.  Each was built with a 6.9-liter 12-cylinder engine that produced 612 horsepower (456 kW / 621 PS) and up to 731 Nm of torque.

The result is a FIA GT1 championship car capable of a 320 km/h (199 mph) top speed.  Produced from 2005 to 2006, the models occasionally show up on the auction block.  Recently, a coupe was picked up for £522,500, with the convertible selling for £616,000.

Gallery: Mercedes CLK-GTR: 60 second walkaround [Video]