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Chevrolet is bringing CNG power to the Silverado HD

Chevrolet is taking CNG-powered vehicles seriously, with so many of their trucks being used in commercial fleets, so it was perhaps no surprise that we'd see a version of the 2015 Silverado HD that can be run either on gasoline or compressed natural gas before long. Chevrolet brought the 2015 Silverado 2500 HD CNG to the Chicago Auto Show, to let prospective buyers as well as the media to learn about at the savings that could be realized with this environmentally friendly setup. The HD CNG truck will offer bi-fuel capability coupled with its 6.0-liter V8 engine that's been modified with hardened valves and valve seats to run on compressed natural gas.

Audi teases its future sporty RS models for 2013

At the launch of Audi's new 444bhp RS5 Cabriolet, CAR's eagle-eyed road test editor Ben Pulman spotted an image of the future of Audi's RS brand. Four new RS models due to go on sale in 2013, joining the current crop of TT RS, RS4 Avant and RS5 coupe models. What's next for Audi RS in 2013, then?

Geely Englon TXN (w/ Gallery)

Geely is poised to show 39 new vehicles at the forthcoming Auto China 2010 motor show in Beijing, among them will be this new TXN taxi. While most of the new cars on show won't be built around entirely new sheet metal - some will feature new powertrains, for example - the Englon TXN is indeed all-new. Sitting in Geely's Englon range, a sub-brand initially created for the taxicab, the TXN is intended as a replacement for the aging TX4 built by British automaker LTI (as well as at Geely's Shanghai Maples factory).