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.

Renault seeks speed record at Bonneville with classic Fourgonnette

With all the speedy machines headed to the Bonneville Salt Flats in August, a classic Renault 4 van is due to stick out. But one will be there Aug. 13-19 for some record breaking fun.

Skoda Superb facelift (2013) first official pictures

This is the new 2013 Skoda Superb, which sports completely redesigned front and rear bodywork, and more frugal powertrains than the outgoing car. What's new under the bonnet of the 2013 Skoda Superb? Stop-start tech and a kinetic energy recovery system (which takes the strain off the engine's alternator by using braking to charge up a capacitor) cuts fuel consumption by up to 19% versus the old Superb. It's all fitted as standard on the diesel engines, and the entry-level 1.4 TSI petrol.