Standard/t-series Ac21t Idle Air Control Motor on 2040-parts.com

Design Development: Kumho Epoch concept

The Epoch project is a concept you wouldn't normally expect from a tire manufacturer. Inspired by the company's success in this year's Le Mans 24 hour race, Kumho decided to employ its conceptual abilities to create their version of an environmentally-friendly Le Mans car of the future. Designed around innovative tire technology, the 'blue sky' Epoch eco-friendly racing car is the first in a series of concept vehicles set to be developed by Kumho over the next few years.

Renault to unveil Alpine-branded concept car at Monaco GP

Renault is set to unveil an Alpine-branded concept car at this weekend's Monaco Grand Prix. The A110-50 – so named to commemorate the fiftieth anniversary of the oh-so-pretty A110 rally car – is clearly a development of the 2010 DeZir concept car although with only one leaked image to analyze, it's difficult to know by what amount it has changed. Clearly it has been subjected to the addition of a myriad of additional details, surfaces, inlets, outlets and various pieces of racing addenda however that, on the little evidence we have, appear to have added drama to the detriment of the refreshingly non-aggressive nature of the DeZir.

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.