Eagle 524014155 Pontiac 400 Rotating Assembly Kit Rotating Assembly, 461 Cid, Ca on 2040-parts.com

GM weighs moving next GMC Sierra upscale

General Motors will do more to differentiate the GMC Sierra from the Chevrolet Silverado when redesigned versions of the pickups go on sale in the first half of 2013. Sierra models may get a longer list of standard equipment and a higher sticker price than comparable Silverados, Mark Reuss, GM president of North America, said in an interview at the Detroit auto show. A similar strategy has proved successful in differentiating GMC's Terrain and Yukon models from Chevrolet's Equinox, Tahoe and Suburban.

Renault Twin-Z concept (2013) first official pictures

This is the Renault Twin-Z concept (say it 'Twin-Zee'). Although it packs the usual concept car madness of suicide doors, a pared-back cabin and LEDs everywhere, it actually previews the look – and drivetrain – of the next Renault Twingo. The big news is that it'll be rear-engined, rear-drive, and offer an electric option for less money than the £13k Renault Zoe EV.

GM's historic Willow Run plant closes

After 68 years of arming the nation and putting America on wheels, the Willow Run manufacturing plant in southeast Michigan closed on Thursday. The 5-million-square-foot powertrain plant, owned by Motors Liquidation Corp., the remnants of the former General Motors Corp., has fallen victim to GM's 2009 bankruptcy and subsequent restructuring. About 300 workers left at the plant will either “retire, transfer to another campus or go on layoff,” said Chris Lee, a spokesman for the reorganized General Motors Co.