GM takes the wraps off the all-new Chevrolet Silverado and GMC Sierra ahead of their Detroit debut. Renault dumps its stake in Volvo trucks. The finalists for the North American Car and Truck of the Year Awards have been announced; we'll tell you which ones are in the running. All that and more, plus John McElroy gets a walkthrough of the BMW i3's styling with the head of the company's i design.