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Porsche plans four-door Panamera convertible

A series of European and U.S. patent applications obtained by AutoWeek show that Porsche remains committed to building a four-door convertible version of its flagship Panamera, despite recent comments from Zuffenhausen insiders indicating the car had been canceled. The new car, depicted in official drawings that accompany the latest Porsche patent applications filed in February, eschews the two-door route taken by all of its upmarket rivals for a four-door body.

Mercedes Viano Vision Diamond – the Maybach of vans

Mercedes Viano Vision Diamond Mercedes-Benz has revealed the Viano Vision Diamond at Beijing, a utilitarian Mercedes van with the interior of a Maybach. The Maybach brand didn’t do Mercedes any favours, with German glitterballs proving no match for British (oh, alright, German-ish) understated elegance in the Rolls Royce Phantom. Maybach has now been re-consigned to the dustbin of history and likely only ever to be seen as a badge to denote the glitziest model in the next S Class range.

California rules give push to 'green' vehicles in the near future

California regulators on Friday approved a plan that would require 15.4 percent of new vehicles sold in the state be electric, fuel-cell or plug-in hybrid vehicles by 2025. The rule--supported by major automakers--is part of a broader package of regulations called the Advanced Clean Car program designed to cut vehicle greenhouse gas and smog-forming emissions. The sweeping new auto emission standards could mean 1.4 million electric, fuel cell and plug-in hybrid vehicles on California roads by 2025.