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CDN–GM Interactive Design Competition winners announced at NAIAS

The winners of the CDN–GM Interactive Design Competition have been announced at the North American International Auto Show (NAIAS) in Detroit. Following a guided tour of the auto show with the GM design team, the finalists gathered on the GMC stand in Cobo Hall where Mark Adams and Ken Parkinson – heads of design for Cadillac & Buick, and Chevrolet & GMC respectively – were joined by Car Design News' Editor Owen Ready to present the winners of each brand's competition brief. Joining them on stage were the mentors from GM's design teams who interacted with the entrants throughout the competition to critique and help develop their work, making this a truly unique contest.

Mercedes-Benz A-class patent renderings leaked

Mercedes-Benz unveiled a three-door concept version of its 2012 A-class at the New York and Shanghai auto shows in April, and images of a possible production model leaked this week via the European Patent Office. The renderings show a five-door hatchback version of the A-class concept with less aggressive styling. Its world premiere is said to be scheduled for the Frankfurt motor show in September.

Caterham introduces track-focused Supersport R

Caterham Cars in the United Kingdom is adding to its range of open-wheel, extra-light sportscars with the Supersport R. The R model builds on the Supersport trim with more power, interior upgrades and an 1,179-pound curb weight. The Supersport R is motivated by a 2.0-liter Ford Duratec engine making 180 hp and 143 lb-ft of torque.