Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Autoweek in review: Ford aims at the Toyota Prius, the new Malibu Eco goes for a drive, and the Audi R8 gets updated.

Take a look at the 2013 Chevrolet Malibu Eco, as Autoweek editors spill the beans on the new sedan. Has Chevrolet finally figured out a decent interior? How about the fuel mileage?

SEMA 2008 show report: Ford F-150, Mustang and Flex

By Phil McNamara Motor Shows 06 November 2008 09:30 Ford's stand was dominated by four models: the Flex, a slammed, seven-seat SUV with Range Rover-styling cues; the iconic F-150 pick up; the Focus; and, of course, the Mustang. With an ear-splitting V8 roar, Ford unveiled a 50-edition run of the Cobra Jet Mustang, and the F-150 SVT Raptor, a go-anywhere extreme version of the pick-up, which will bounce across sand dunes in the Baja California race later this month before going on sale next year. But tucked away in a corner was a less environmentally destructive F-150, shaped by British engineering firm PML.

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.