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

April car sales in a nutshell: The year's 2nd-strongest month

Here are highlights from April's U.S. auto sales report: Industry rises 20 percent Overall U.S. sales rose 20 percent in April to 982,302 light vehicles, a gain of 162,610 over the same period a year ago.

Audi Urban Concept

Audi has released additional photos and information on the Urban Concept, which is set to make its debut at the Frankfurt motor show in September. As we previously reported, the new car – touted by Audi as a 'new kind of concept car' that combines aspects of a racing car as well as a fun-to-drive urban vehicle – is a diminutive two-passenger vehicle powered by two e-tron electric motors. Measuring in at 3200mm long, 1700mm wide and 1200mm tall, the Urban Concept is expected to weigh less than 500kg, thanks largely to a cockpit made from CFRP.

Hyundai i20 WRC car, ix35 Fuel Cell and i30 3dr (2012)

Hyundai sprung a trio of surprises at the 2012 Paris motor show - by launching the i20 WRC rally car, a three-door version of the i30 hatchback and an ix35 fuel-cell car ready for sale in just a few months' time. Three world debuts for Hyundai at Paris motor show 2012: the i20 WRC rally car The headline-grabbing launch on the Hyundai stand was this rally-ready i20. The Koreans have form here, with an Accent racer, but it last competed in WRC in 2003; now, a decade later, Hyundai plans to re-enter the new WRC with its own in-house team.