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GM technology chief Tom Stephens to retire

Tom Stephens, GM's vice chairman, chief technology officer and former head of global product operations, will retire on April 1 after a 43-year career with the automaker. His successor will be named later, GM said Sunday. Stephens, 63, has served as GM's chief technology officer--a new position--since Feb.

Brumos Porsche to honor Hurley Haywood with special-edition Carrera GTS

Brumos Porsche in Jacksonville, Fla., parent of Brumos Racing, confirmed the production and imminent delivery of five factory-built 911 Carrera GTS B59 Edition coupes that pay homage to driver Hurley Haywood--five-time winner of the Daytona 24-hour race. The exclusive Porsches will carry a sticker price of $133,540. The 408-hp coupes, based on the GTS, will have the Brumos red-and-blue stripe design for the front hood and rear deck, Porsche door decals, 19-inch sport classic wheels, limitation badges and Carrera White accents and door-entry guards with HHaywood's engraved signature.

Tesla Model S battery fire inquiry closed by NHTSA

The National Highway Traffic Safety Administration said it closed a three-month-long investigation of fires in the Tesla Model S this week, as Tesla announced a design change to better shield the electric car's batteries. Tesla Motors Inc. said today it has started building the Model S with a titanium underbody shield to prevent battery fires like the two that occurred in the United States last year when Model S drivers struck road debris.