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

Red Bull race in L.A. draws 111,000

No one really knows the precise makeup of the stuff that fills those ubiquitous Red Bull energy drink cans, but the compelling mixture seems to make people accomplish extraordinary things. For instance, on Saturday in Los Angeles, it got the city to shut down a long stretch of Grand Avenue and part of 5th Street for the wacky and spectacular Red Bull Soapbox Race Los Angeles. These events have been held regularly since the inaugural race in Belgium in 2000.

Redesigned 2012 Subaru Impreza bows at the New York auto show

The redesigned 2012 Subaru Impreza made its debut in New York on Wednesday with a more refined look, a longer wheelbase and a new four-cylinder engine. The Impreza's horizontally opposed 2.0-liter produces 148 hp and returns 36 mpg on the highway, even with all-wheel drive. Fuel economy is maximized with electric power steering and low-rolling-resistance tires.

Video: GM's Frank Saucedo, Niki Smart and Gael Buzyn on the Elmiraj concept

GM director advanced design Frank Saucedo features in a new video explaining the design process behind the new Elmiraj concept. Saucedo, who oversaw the concept's development at GM's advanced design studio in North Hollywood, California, talks about how the Elmiraj – the second in a series of three concept cars that began with last's year Ciel – is a study of how they can progress and evolve the carmaker's ‘Art and Science' design philosophy. GM's interior design manager Gael Buzyn and exterior design manager Niki Smart also feature, with Smart explaining how the Elmiraj concept is focused on the notion of ‘the drive' and has been designed to reflect dynamism while the Ciel was about ‘the journey', represented by a luxurious interior.