GM begins clearance sale for Hummer

General Motors is shutting down the Hummer brand for good, taking the last of its four discarded U.S. brands off the market. GM had said it would consider offers to buy Hummer after a deal to sell the brand to Sichuan Tengzhong Heavy Industrial Machinery failed to receive Chinese government approval in February.

McLaren denies Ron Dennis demotion rumors

McLaren has denied reports that boss Ron Dennis is being demoted in the wake of the automotive division he heads losing money. Germany's Auto Motor und Sport broke the news this week that Dennis could be demoted. He is known for shaping McLaren into a motorsports powerhouse, and has spearheaded its automotive division since 2009.

Porsche 911 GT3 R hybrid back to racing in 2012

Porsche will return to the track in 2012 with the third generation of its rolling laboratory, the 911 GT3 R hybrid. The company continues to push its technology, noting its future in the sport. “There is no way around the hybrid technology in motorsport,” said Wolfgang Hatz, board member for research and development.