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One Lap of the Web: Car stuff you may have missed

We spend a lot of time on the Internet -- pretty much whenever we're not driving, writing about or working on cars. Since there's more out there than we'd ever be able to cover, here's our daily digest of car stuff on the Web you may not otherwise have heard about. -- Speedhunters brings us a gorgeous photo essay of cars on the N

Citröen Metropolis concept car (2010) first pictures

By Chris Chilton First Official Pictures 19 April 2010 16:34 Citröen is using this week’s 2010 Shanghai motor show to give a sneak view of how a new Citröen limo could look. The press statement says the Metropolis concept ‘pays homage to China’s extraordinary development’ but just how this Citröen forces millions of people to live in poverty with no access to an uncensored media isn’t yet clear.A massive 5.3m long (longer than a stretched 7-series) but only 1.4m high, the four-door coupe’s styling has echoes of Citröen’s incredible GT supercar concept of 2008 and was developed by Citröen’s Shanghai-based design team. China’s car market is phenomenally lucrative and rich Chinese are hungry for luxury saloons so the Metropolis is likely to resurface as a Chinese-market limo rather than point to the next C6.A Citröen hybrid limoTo ensure occupants get a level of ride quality worthy of a limo it’s fitted with Hydractive suspension; to keep their conscience clean it’s fitted with a plug-in hybrid drivetrain.

MIT develops self-transforming materials that behave 'like robots without robots'

A cross-disciplinary research lab at the Massachusetts Institute of Technology (MIT) has developed a suite of programmable materials, including carbon fiber, printed wood grain, textile composites, rubbers and plastics, that self-transform when exposed to an external stimulus. Director of the Self-Assembly Lab, Skylar Tibbits, presented a TED talk on 4D printing in 2013, where he demonstrated how a flat sheet of material could effectively build itself when exposed to water, like a robot without a robot. Following positive feedback from industries including aviation, automotive and manufacturing, his lab has been working on developing materials that change according to different activation sources, including heat, light, and air pressure, in addition to water – all of which have automotive relevance.