Mercedes-Benz ... CLK GTR first arrived on the scene, it was to participate in the initial FIA GT Championship series in 1997 ...

On this episode of Head 2 Head, Motor Trends Carlos Lago takes a closer look at the technology that makes the Nissan GT-R and Porsche 911 Carrera S go around corners as fast as they do.

and Porsche 911 GT3 to see which of the musclebound sports cars could best its immediate competition, and they captured the three-way face-off on video. There's been plenty of GT-R vs. Porsche ...