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

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.

Infiniti Q50 Eau Rouge Meets The Real Thing

WHILE Infiniti has yet to make a decision on whether to put its high performance Q50 Eau Rouge model into production, bringing it to the circuit with the corner named after it was too good an opportunity to miss. It’s no surprise that Sebastian Vettel, Infiniti’s Director of Performance and four-time Formula One World Drivers’ Champion, put the car through its paces as part of a social media promotional activity. Vettel has been involved in the ongoing development of the Q50 Eau Rouge prototype, which was first revealed as a design concept vehicle at the North American International Auto Show in Detroit in January this year.

Mercedes-Benz C63 AMG coupe revealed

Mercedes-Benz has followed up the debut of the C-class coupe at the Geneva motor show with the unveiling of this new range-topping version, the C63 AMG coupe. Set to land in North American showrooms in September following a planned debut at next month's New York auto show, the new BMW M3-challenger receives the same updated mechanical package as the recently facelifted C63 AMG sedan. It will be sold from the outset as a 2012-model-year car.