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

Audi A7 Sportback – Official photo leak

The Audi A7 Sportback Leaks Out We reported last week that Audi were due to reveal the Audi A7 Sportback tomorrow (Monday) at the Pinakothek der Moderne München in Munich. So it’s hardly a shock that the first official photos of the new Audi A7 Sportback have turned up ahead of the event. With the official reveal tomorrow – and some official detail likely to drop in to our inbox sooner than that after this leak – there isn’t too much point going in to huge speculation about what’s to come.

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 previews new sports car concept for Geneva 2012

This is our second glimpse of a new range-extender sports car concept that Infiniti will unveil at the 2012 Geneva motor show in March; it's already been teased once before. So presumably the engine that's part of electrified powertrain isn't the company's big 3.7-litre V6? You're right there.