Cadillac Allante Driver And Passenger Headlight Assembly on 2040-parts.com

Motortrend examines making of Kia’s Track’ster concept

Motortrend has included a comprehensive step-by-step guide exploring the process through which Kia built its Track'ster concept car in its April edition. The study, complete with a detailed photo timeline, tracks the progress of the concept vehicle from the original idea right the way through to the car's unveiling at the Chicago Auto Show. The Track'ster was originally pitched as a turbo four-cylinder all-wheel-drive sports car and is based on the production version of the Kia Soul, which was the company's second-best-selling vehicle of 2011.

BBC probe Top Gear 'practices'

THE BBC has held an internal investigation into Top Gear after a string of controversies involving the hit motoring show. The Guardian said that a report examining its "culture and practices" has been sent to director of television Danny Cohen and that people working on the show were asked if they thought it was racist. The show was found to have breached Ofcom's broadcasting rules last month over a ''racial'' term used by presenter Jeremy Clarkson.

Mercedes SLS AMG E-Cell (2010): the electric SLS

Following the unveiling of Tesla's updated Roadster 2.5, Mercedes is showing off its iteration of an all-electric sports car: the SLS AMG E-Cell. While the regular SLS pumps out 563bhp and 479lb ft from its 6.2-litre V8, the SLS E-Cell has four synchronous electric motors, powering all four wheels for a combined output of 392kW (equivalent to 526bhp) and a mammoth 649lb ft of torque. Crucially, all of that power is accessible from zero revs, allowing the E-Cell to sprint to 62mph in four seconds dead.