1967-1968 Harley Three Wheeler Cart-steering Sprocket 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.

A brief history of the 'Le Mans-style' start

The famous ‘Le Mans start’ Since the race’s inaugural meeting in 1923, tradition dictated a standing start. This later became known as a ‘Le Mans start’, and involved drivers lining their cars up along the pit wall in the order they qualified in. Racers would then have to stand on the opposite side of the track, and when the French Tricolor flag dropped the drivers would have to sprint to their cars, strap themselves in and begin racing.

Buy a hydrogen-powered car in 2015…at least in California

At the Consumers Electronics Show this week Toyota claimed that a production version of its four-door midsize FCV concept fuel cell sedan will hit showrooms some time in 2015. Toyota has been investing in fuel-cell technology for the past 20 years, and since 2002 it has been testing and developing prototypes primarily in North America. Toyota claims that it has reduced the cost of producing a fuel-cell powertrain, and has estimated a 95 percent cost reduction in the powertrain and fuel tanks for the 2015 production model versus the 2002 prototype.