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

Audi Q3 (2011) first official pictures

This is Audi’s new Q3, a baby SUV that’s set to challenge the BMW X1, Range Rover Evoque and forthcoming Mini Paceman, as well pinching potential Ford Kuga customers. It’s Audi’s smallest Q series 4x4 yet, sitting below the Q5 and Q7. The new Audi Q3 will be officially unveiled at the 2011 Shanghai show next week.

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.

2012 Porsche 911 7-speed gearbox in action +video

2012 Porsche 911 7-speed gearbox video below Some of us are old enough – just –  to remember when a 3-speed gearbox was normal. And, quite often, located on the column. Cars like the Vauxhall Cresta and Ford Zephyr had them, but they now belong to a completely different world to the one inhabited by the 7-speed manual gearbox in the new Porsche 911.