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

UAW, Fiat likely to hold key stakes in new Chrysler

The UAW and Italy's Fiat S.p.A. could be Chrysler LLC's leading shareholders if the struggling U.S. automaker wins the concessions requested by President Barack Obama's automotive task force by April 30, a source close to negotiations told Automotive News today.

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.

Mercedes launches Attention Assist

By Ben Whitworth Motor Industry 13 August 2008 13:28 Mercedes-Benz researchers call it the ‘one-second nap’ – that instant when fatigue overcomes you at the wheel on a long trip and you wake up in hospital. To counter dozing off while driving, which Mercedes claims accounts for a quarter of all major motorway accidents, its engineers have developed an innovative driver support system called Attention Assist. As well as registering linear and lateral acceleration, indicator and pedal operation and vehicle speed, the system also monitors steering response - the most important indicator of fatigue according to Mercedes, is tired drivers have difficulty in keeping their vehicle precisely on track.