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Volvo and Polestar offer post-sale software upgrades

Volvo's performance arm, Polestar, will offer software upgrades for the T6 and 2.5T engines that will increase horsepower and torque. The upgrade should calm Volvo fans who missed out on the limited-edition Polestar C30. For the T6 engine in the 2010 Volvo XC60 and 2009-2010 XC70 Polestar will offer a bump in output from 281 hp to 311 hp.

Chevrolet offers Corvette buyers the opportunity to build the engine for their cars

WITH VIDEO -- Chevrolet Corvette buyers can already take delivery of their car at the National Corvette Museum, get professional driver training and watch their cars being built. Now, General Motors will let them build the engine. GM is offering buyers of the 2011 Corvette ZR1 and Z06 models the chance to build the engines for their cars.

Porsche mulls smaller SUV, sports car

Porsche may develop a small SUV and a sports car smaller than the Boxster as it aims to double worldwide sales in the next three years. Bernhard Maier, head of sales and marketing at Porsche AG, confirmed that the company is looking into smaller and less expensive models “but we have taken no decision so far.” The small SUV has been code-named “Cajun”--short for Cayenne Jr. The success of the Cayenne SUV has given Porsche confidence to “investigate if there are other opportunities,” Maier said.