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Opel product chief Weber quits to take job with yet-unnamed rival

Frank Weber, the German-born engineer who helped lead development of the Chevrolet Volt and Opel Ampera hybrids, is leaving General Motors' Opel unit to work for an as-yet unnamed competitor. Weber has been Opel's product chief since November 2009. His departure was reported Thursday by Automotive News Europe and confirmed by company sources.

Driven: Lexus IS-F

The Lexus IS-F is a significant new design for one core reason: it introduces a performance sub-brand parallel to that of the M-cars from BMW, AMG from Mercedes-Benz, and the S and RS sub-brands from Audi. This then is Lexus making a logical next step to further encroach on the established German premium brands. BMW originated the premium brands' performance sub-brand with the 'M for Motorsport' M3 of 1986 (the M1 supercar of 1978 preceded that, but was a singular model, not a performance derivative).

2013 Nissan LEAF updated

Nissan has updated the LEAF EV in Japan for 2013 with better range, less weight and a new LEAF S entry-level model. Revealed in Japan – but likely to come to the UK from 2013 when the LEAF starts rolling out of Nissan’s Sunderland factory – there are significant upgrades to the powertrain which result in both less weight and better range. Nissan has had a play with the electric powertrain and made it both smaller and lighter with a new motor that uses 40 per cent less dysprosium (a rare earth metal) than before, and comes in 30 per cent smaller and 10 per cent lighter, and a new streamline battery case and a few other tweaks drops the LEAF’s weight by 80kg.