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Mercedes CLA 45 AMG (2013) first official pictures

If you liked the ballistic performance of Mercedes' 355bhp A45 AMG but couldn’t bring yourself to drive a hotted-up hatchback, then take a look at this: the new CLA 45 AMG. Using an identical 2.0-litre turbocharged engine and four-wheel drive system, the CLA mixes the storming performance of its hatchback brother with mini-CLS four-door coupe looks. Read on for the full specification.

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.

Mercedes-Benz drops first sketches of S-Class Coupé concept

The first batch of official sketches of Mercedes-Benz's S-Class Coupé Concept emerged this morning ahead of its unveiling at next week's Frankfurt motor show. The S-Class Coupé Concept previews the production model that will replace the CL-Class Coupé, and the first glimpse provides us with views from every angle. From what we can see, it mixes elements of S-Class – dropping feature line, rounded rear screen – with a pinch of SLS – hood power domes, rear lamp graphics and cab-rearward proportions.