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BMW M550d xDrive (2012) - the diesel M saloon

BMW has launched its first diesel M car: the new M550d xDrive in saloon and Touring estate forms. It's part of a strategy to fill the gap between the exclusive M GmbH division cars and the top-end cosmetic M Sport trim lines with a new range of M lite: BMW M Performance Automobiles. Developed by the engineers responsible for the M3, M5 et al, the new M550d xDrive is powered by a new high-output version of the 3.0-litre straight six turbodiesel packing not one, not two, but three turbochargers.

Infiniti LE Concept

Infiniti's new LE Concept, a zero-emissions luxury sedan, has been unveiled at this year's New York auto show. The LE Concept, which is approximately the same length as an the brand's G Sedan, features Infiniti design cues such as the double-arch grille, crescent-cut C-pillar and a strong shoulder line surface. Design features such as the aluminum-alloy wheels with aero treatment, the high rear deck, rear aero diffuser and aero side fin spoilers with integrated illumination contribute to the coefficient of drag of 0.25.

The next presidential limousine might look like this

A few days ago, the United States Secret Service posted the bid requirements for a new presidential limousine, which is set to debut during the 2017 inauguration of our nation's 45th chief executive. It's hard to believe that the General Motors-built Cadillac dubbed "The Beast" is already due for replacement, but the fleet of presidential limousines is cycled every four or eight years, with bids accepted from any American automaker. We'll spoil the show for you: the odds of a company other than General Motors winning the bid is pretty slim.