See also:

Traction – AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B, and C. Those grades represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified governm ...

Architecture and suspension
The story starts with the XLR's backbone, upon which the car's dynamic capabilities depend. Based on GM's new performance car architecture, this unique and patented structure comprises steel hydro ...

Fast facts
1. Base 2.5L 4-cylinder models make 202 hp and 191 lb-ft of torque, with the 2.0T rated at 272 hp and 260 lb-ft and the 3.6L V6 at 321-hp and 275 lb-ft. 2. 0-60 times for each motor list at: 7.5, ...