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

One Lap of the Web: BMW M3 gets color-corrected, a gentleman's GT-R and the Porsche 959

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- Oh dear, BMW: Perhaps you shouldn't have made two M3 color selections sound so similar?

Citroen DS4 (2011) first official pictures

Hot on the heels of the new Citroen C4 comes the new Citroen DS4, the second of the French car company’s 21st century DS models. Designed to take on sleek models like Alfa’s Giulietta and Vauxhall’s forthcoming three-door Astra, it mixes humdrum hatchback underpinnings with a more adventurous styling direction on the outside, and more luxurious materials on the inside. Essentially, yes – think along the lines of how Citroen turned the mundane C3 into the much more exciting DS3.

CONFIRMED! Buick Regal GS gets green light

The Buick that enthusiasts have been clamoring for--the Regal GS show car revealed at the Detroit auto show--will soon be reality. This turbocharged demon packing 255 hp and 295 lb-ft of torque with a six-speed manual transmission and a host of performance enhancements has been approved, spokeswoman Dayna Hart told AutoWeek on Monday. There is no time line for the launch, and other details are not available.