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Peugeot Onyx Concept: Paris 2012

The Peugeot Onyx Supercar Concept is a concept that will never be built and based on the underpinnings of the Peugeot Le Mans car. So Paris 2012 gets treated to the appealing Peugeot Onyx – a Gallic Jaguar C-X75, if you like – looking sexy and sleek on the floor in Paris with its copper and carbon fibre body and use of unusual materials like crystal glass and compressed paper. But it seems, as if we didn’t already know, that Peugeot aren’t planning to build an Onyx supercar – or at least not in their current financial muddle - and have even nicked its underpinnings from their own Le Mans 24hr diesel engine car to give the Onyx some eco and supercar credibility.

Volvo tests flywheel technology to cut fuel use

Volvo is testing flywheel technology--being used in Formula One racing to give cars an extra boost--as a technology that could help cut fuel use in future cars by as much as 20 percent. Flywheels recapture energy normally lost as heat during braking. That energy can then be used to help propel the car.

The thinking man’s M3: Alpina D3 Bi-Turbo is world’s fastest diesel production car

German tuning firm Alpina has been tweaking BMWs since it started back in 1965 – in fact, it helped BMW develop the legendary 3.0 CSL, so it seems it knows its onions. However, its latest effort is something a little different. Not quite a conventional performance car, the 2013 Alpina D3 Bi-Turbo is actually the world’s fastest diesel production car, according to the firm.