Buick prices LaCrosse four-cylinder model, due early next year

The Buick LaCrosse will get a four-cylinder engine that could get up to 30 mpg early next year. The LaCrosse, Buick's highly touted new sedan, will start at $26,995 with this powerplant. The direct-injection 2.4-liter Ecotec four-cylinder makes 182 hp and 172 lb-ft of torque.

Renault Initiale Paris stars at the 2013 Frankfurt Motor Show

It may seem like a strange idea for Renault to launch its Initiale Paris premium sub-brand at a German motor show, but it could turn out to be quite an astute move. The French brand is hoping to take on the Germans with Initiale Paris, so showcasing this rather wonderful concept in Frankfurt is a clear signal of intent. Renault says this Initiale Paris concept previews the next generation Espace, but we can't help but see a massive dollop of Renault Avantime when we take a wander around the car.

Concept Car of the Week: GM-X Stiletto (1964)

With dreams of flying cars as the ultimate inspiration, General Motors designers in the ‘60s used every trick possible to make their creations appear as though they were floating – long, straight bodies, wheels pushed in and hidden away, large fins and lights that looked like rockets. As William L. Mitchell took the reins of GM Design, he brought a more high-tech approach, with simpler surfaces, a more restrained use of chrome and a general sense of elegant simplicity.