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

Video: The Porsche Panamera Sport Turismo concept build process

Porsche has released a video featuring Style Director Michael Mauer charting the design process of the Panamera Sport Turismo concept. The 10-minute YouTube video, which also features General Manager Advanced Design Style Mitja Rorkert, follows the build process through each modeling phase right up until the presentation of the show car at this year's Paris motor show. "It always presents a special challenge when we develop a new kind of car for the Porsche brand," says Mauer, "precisely because we haven't been in the segment before, and the question of whether it matches the Porsche brand always looms in the background." We were impressed at the Panamera Sport Turismo concept's unveiling, particularly with its stance and detail execution, so the video is a chance to see just how this concept came into being.

Renault Twizy ZE electric concept at 2009 Frankfurt motor show

By Ben Pulman First Official Pictures 15 September 2009 12:00 This is the Renault Twizy ZE concept, just unveiled at the 2009 Frankfurt motor show. And while it might look mad, Renault has confirmed this 1+1 electric city car will go into production in 2011 essentially unchanged. I’m stunned – tell me all about the Renault Twizy ZE concept The Twizy ZE is a zero-emissions ‘car’ designed for urban transportation, with a tiny 2.3m length and a mere 3m turning circle.

SEAT’s future model plans

SEAT Last week MSN Cars went to visit SEAT at its major base of operations – the Martorell factory in Spain. Here we spoke to CEO Juergen Stackmann and executive vice president for research and design Dr. Matthias Rabe about the brand’s future model plans.