Cessna 152 L/h Fuel Tank 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.

Camouflaged Cadillac ELR spotted on the road

Autoweek reader Josh Lindquist recently snapped these photos of what may be a camouflaged Cadillac ELR cruising around metropolitan Detroit. While the photos don't show the car from every angle, its lines are strikingly similar to those on the ELR featured on Cadillac's official Web site. The ELR first appeared as the Cadillac Converj concept in 2009.

Renault Megane CC (Coupe Cabriolet) revealed

Renault is to debut the new Renault Megane CC at the Geneva Motor Show A couple of weeks ago we had a teaser photo of the new Renault Megane CC which is due to launch at the Geneva Motor Show next month. As usual all we got was an arty picture – in this case of the rear 3/4 view – and a few details. But now Geneva is getting closer Renault has decided to divvy up a set of pictures and a fair amount of detail.