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.

Jaguar Heritage Museum to close.

Jaguar Heritage Museum to close Jaguar has decided to close the Jaguar Heritage Museum at Browns Lane as they wind down operations at the historic site. It’s less than three years since the Jaguar Heritage Museum was relaunched as a show case for the history of Jaguar cars. With 150 cars in its collection – from the first Jaguar badged car, the 1937 SS, to C-Type, D-Type and the last convertible V12 E-Type – the Jaguar Heritage Museum is a magnet for Jaguar nuts from around the world.

2012 Ford Focus ST gets 297bhp

Those clever chaps at SuperChips have given the 2012 Ford Focus ST a bit of an ECU tweak to deliver 297bhp and an extra 85lb/ft of torque. When we reported last week that WTC outfit Arena had in roped Ford’s tuner of choice, Mountune, to give the new Ford Focus a makeover, we were a tad disappointed to discover that they were tweaking the rather journeyman Focus Zetec S. That meant the Zetec S got 200bhp – a handy jump – but we bemoaned the fact that they hadn’t fiddled with the Focus ST to give us a car to fill the void left by the absence of a Focus RS in the current iteration of the Focus.