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Roof leaks dampen Autorama

The Detroit Autorama was marred last weekend by a leaky roof that spilled salty, rusty water onto several custom cars. The leaks were caused by a combination of heavy precipitation--Detroit has had one of the snowiest winters in recent memory that gave way to an early March rainstorm--which pummeled an aging roof. Water fell to the show floor in six spots, temporarily damaging seven or eight cars.

Watch the Porsche 911 GT3 rear-steering system work

A handful of manufacturers have offered four-wheel steering in the past including Honda, Nissan, BMW, Mitsubishi, Mazda and, most recently, Acura and Porsche. On Monday, suspension expert Elephant Racing uploaded a video to its YouTube channel demonstrating the feature on the 2014 Porsche 911 GT3. In most four-wheel steering cars--Acura and Porsche included—a computer controls the movable rear wheels.

Chevrolet Volt concept

By Ben Oliver Motor Shows 07 January 2007 03:24 Don't tell me – it's another me-too green car concept that's too expensive and complex to ever be made… Not quite. For a start it's an entirely new concept, and important enough to be General Motor's biggest news from the Detroit show. An electric motor drives the front wheels.