GM to build Cadillac ELR in Detroit

General Motors confirmed Tuesday that it will build the Cadillac ELR extended-range plug-in hybrid at the same plant that builds the Chevrolet Volt and Opel Ampera hybrids. GM said it will spend $35 million on the Detroit-Hamtramck Assembly plant to add the Cadillac. GM North America president Mark Reuss said production of the ELR is set to begin in late 2013.

Audi welcomes Porsche back to Le Mans

Porsche is returning to the 24 Hours of Le Mans next weekend, and reigning champ Audi figured it would be nice to send a little welcoming committee to Stuttgart, Germany. The committee consisted of one driver in an R18 e-tron quattro LMP1 car. Keen eyes will notice the race car passing a red tractor, also a Porsche design.

MG exploring sports car concepts, eyeing US return

MG Motor, now part of China's SAIC along with Rover Group successor Roewe, is considering a sports car in addition to long-term plans for a return to the U.S. market, according to Edmunds. The company is in the early stages of exploratory work on a sports car following the opening of a new design studio in Shanghai, a sports car that is expected to mirror the classic MGB mold, if it is determined that today's MG could in fact field a worthy competitor to the Miata.