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Dodge Viper SRT10 ACR (2007): first official pictures

By Tim Pollard First Official Pictures 09 November 2007 01:13 Dodge Viper SRT10 ACR: the lowdown As if the regular Dodge Viper, sorry, SRT10, wasn't hard enough, the Street and Racing Technology division at the Chrysler group's Detroit HQ have dreamed up a hardcore street-legal racing version. It's not for the faint-hearted, as you can tell from the angry body addenda and huge spoilers mounted on the already monstrous coupe. The ACR bit of the name denotes it's an American Club Racer spec car - it's the first use of the badge on a Viper since 1999.

General Motors to keep green car technology in house

For the first time in its 100-year history, General Motors plans to design, develop and manufacture electric motors for its growing array of gasoline-electric hybrids and electric vehicles. The electric motors used in GM's current lineup of hybrids are made to GM specifications by outside vendors. GM wants to bring the design and manufacturing in-house to save money and to apply its own technology to boost performance, lower weight and reduce power consumption, said Larry Nitz, GM's chief hybrid powertrain engineer.

Concept Car of the Week: Mazda RX500 (1970)

Developed by the Toyo Kogyo Company's advanced design and engineering team, the Mazda RX-500 was described as a ‘mobile test bed for high-speed safety'. Looking at its design, the team's childlike enthusiasm has shone through, resulting in a very cool concept.  From the rakish front to the wraparound windscreen and on to the bread van rear, everything communicates high-tech and ‘70's futurism while also channeling a little of the Star Wars X-Wing. Thanks to plastic body panels, the concept weighs only 850kg and is powered by a 491cc rotary engine delivering 247bhp fitted behind the cabin, in front of the rear axle.