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

Porsche 911 Black Edition (2011) at 2011 Geneva motor show

The current Porsche 911 isn’t dead yet – this is the run-out Black Edition special. Just 1911 examples will ever be built, and it’s loaded with extras to keep 911 sales ticking over until the all-new version is unveiled later this year. Unlike the Carrera GTS, which is the most focussed (and brilliant) 911 this side of a Porsche Motorsport product, the Black Edition is based on the entry level Carrera.

Video: GM's Clay Dean on the future of urban mobility

Clay Dean is the star of a new Faces of GM video, Anticipating the Driving Experience of the Future. The global design director for GM's Advanced Design Group, whose job also entails exploring future transportation design solutions, talks about the need to avoid short-term thinking on urban mobility, as by 2030 60 percent of the world's population will live in cities. As new challenges start to emerge, such as increasing congestion, Dean believes it is time to start thinking about transportation in a completely different way.

IDSA's 3D-printed car design contest gets underway

Aspiring designers have the chance to see their 3D-printed car designs launched down a miniature model of a ski jump and crash in the Launch Day 2013 competition due to take place at the 2013 IDSA conference, which runs from 21-24 August. Up to five designs can be entered for free until 12 August in the competition, organized by The Industrial Designers Society of America. All submissions will then be judged for both aesthetics and for "using unique attributes of 3D printing" which will whittle them down to just 10 designs that will be printed before the launch.