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New BMW M3 and M4 engine secrets laid bare

BMW's M division has lifted the veil of secrecy on the inline six-cylinder engine bound for its upcoming M3 sedan and new-to-the-range M4 coupe and convertible, revealing a potent twin-turbocharged 3.0-liter direct injection gasoline unit that produces an official 424 hp at 7,500 rpm and what officials describe as "significantly more than 369 lb-ft" of torque. The newly developed engine, known under the internal codename S55 B30, shares its 84.0 mm bore and 89.6 mm stroke with BMW's standard turbocharged 3.0-liter in-line six-cylinder direct-injection gasoline mill, the M55 used across the German car maker's lineup, endowing the aluminum block unit with an overall swept volume of 2,979 cc. This represents a sizeable 990 cc reduction on the engine BMW's M division's new unit replaces, the S65.

Audi Kicks Off Le Mans Campaign In Style

THERE’S no getting away from the fact that Le Mans is a big deal for Audi. The German car maker has dominated the famous endurance race in recent years, and to reinforce the event’s importance the launch of its 2014 car was a little unconventional. The Le Mans circuit is unusual in that, for most of the year, part of it is a public road.

Chrysler ecoVoyager Concept

The third eco-friendly concept Chrysler will be unveiling at the Detroit Auto Show in January will be this ecoVoyager show car, a four-door, four-passenger vehicle. Like the Ford Airstream concept unveiled at the Detroit Auto Show last year, this concept explores the potential of maximizing interior space through employing an electric powertrain mated to an environmentally-friendly hydrogen fuel-cell. Overall the exterior design of the ecoVoyager appears fairly conventional.