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Mercedes C-class AMG DTM (2012) at Frankfurt motor show

Mercedes’ F125 concept might preview a hydrogen future for the automobile, but alongside this tech-laden show car Benz boss Dr Zetsche (with a little help from Michael Schumacher and Nico Rosberg) also unveiled a hardcore race car. It’s the Mercedes C-class Coupe AMG DTM, which will compete in next season’s Deutsche Tourenwagen Masters – think touring car, only with 4.0-litre V8s and rear-wheel drive chassis. Is the Mercedes C-class Coupe AMG DTM a C63 AMG Coupe under the skin?

Toyota Aygo gets new engine technology to make it more economical

The new Toyota Aygo (pictured) gets new engine tech The new Toyota Aygo has only just arrived as Toyota’s part of the city car triumvirate which includes the new Citroen C1 and new Peugeot 108, but its already set to get improvements. Toyota have been playing with the little 1.0 litre three-cylinder that lurks under the bonnet of the majority of Aygos, and have managed to do some serious tweaking. The tweaks include a higher compression ratio of 11.5:1, a cooled exhaust gas recirculation system, changes to the timing, better combustion, less friction and lower weight.

DAB radio in cars and the digital switchover

Britain's motorists face a £1 billion+ bill to fix their car radios so they work after the digital switchover, a CAR Magazine investigation reveals. The Government plans to switch off the FM signal and move the UK's broadcasting industry to DAB digital radios - mirroring the switchover from analogue to digital televisions. The official target for the digital radio switchover is 2015, but many commentators predict that date will slip as there is a great deal of work to be done before Britain is ready.