66m-12411-00-00 66m-12411-01-00 Thermostat For Yamaha 4-stroke Outboard Motor 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.

Design Essay: Are smart roads just around the corner?

In order to remain relevant, the car must constantly evolve. But while almost all attention focuses on four wheels, the roads that facilitate an automobile's progress have remained relatively unaltered since Eisenhower formed the National Highway system in the 1950s. With environmental concerns getting ever higher on the agenda, there is an opportunity to think outside the (metal) box and rethink the road, making it as smart as the vehicles and devices that travel upon it.

Audi RS6 Avant (2012) first pictures of new super-wagon

In the battle of super-estate Top Trumps, Audi has just nicked the goalposts – in a suitably commodious family wagon. Despite boasting two fewer cylinders and 1200cc less than the old V10 RS6, the new RS6 Avant is even faster over the 0-62mph sprint, and will top out at over 190mph. Wow!