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New (2014) BMW M3 and M4: OFFICIAL

The new BMW M3 (pictured) debuts along with its coupe sibling, the BMW M4 (below) We’ve had teases from BMW for the new M3 and M4 but now, ahead of a public debut at the Detroit Auto Show next month, we get the official details. Key to the four-door M3 and 2-door M4 is the new 3.0 litre engine, a new turbo, direct injection in-line six petrol which produces 425bhp and a very healthy 405lb/ft of torque from just 1850 rpm. That sort of grunt is enough to get the M3 and M4 to 62mph in 4.3 seconds with the standard six-speed manual, but opt for the seven-speed DCT ‘box and it’s even quicker – just 4.1 seconds.

Saab on brink of closing after GM rejects rescue plan

Saab Automobile filed for bankruptcy on Monday and is on the brink of shutting for good after former owner General Motors rejected a rescue plan. The move sets the scene for the end of Saab's struggle to survive after months of hastily drawn-up deals for a company that hasn't made a vehicle in months. The latest plan involved Chinese automaker Zhejiang Youngman Lotus Automobile, but this was vetoed by GM, still a key Saab supplier, over the weekend "After having received the recent position of GM on the contemplated transaction with Saab Automobile, Youngman informed Saab Automobile that the funding to continue and complete the reorganization of Saab Automobile could not be concluded," Saab's Dutch owner, Swedish Automobile, said in a statement.

Buick Envision SUV concept

Another car that broke cover at Shanghai, was the Buick Envision SUV concept. The Envision is another car that slots into the coverted crossover niche, and was developed jointly by Shanghai GM and the Pan Asia Technical Automotive Center (PATAC). The Envision is said to merge Buick's global design language with Chinese aesthetics for the SUV segment.