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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.

Geneva motor show: Autoweek editors' picks

From the wildest, most absurd supercars only a few oligarch gazillionaires will ever own to dinky econohaulers giving mobility to whole populations, Geneva had it all. We ogled everything from McLarens and Maseratis to Twingos and Tatas. If in fact Europe is still struggling in some ways to recover from the recession, it sure didn't look that way at the Geneva motor show: The Swiss show was out of neutral and had the hammer down.

SEAT Ibiza ST (Sport Tourer) at Geneva

The SEAT Ibiza Sport Tourer will launch at the Geneva Motor Show Once upon a time it was all about getting the biggest estate car you could. That was what estate cars were for. But these days style and compact dimensions appeal to estate car buyers as much as anything, so the reveal of the SEAT Ibiza Sport Tourer should mean a few more sales heading SEAT’s way.