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Ram introduces CNG-powered pickup

Aside from the Honda Civic Natural Gas, compressed-natural-gas-powered vehicles have usually been converted after the fact, generally for fleet use. Chrysler is hoping to carve out a niche in the corporate-pickup segment by selling a factory-built CNG Ram 2500 that can seamlessly switch over to gasoline operation when the natural-gas tanks run dry. The twin 4.6-cubic-foot CNG tanks (which store the equivalent of 18.2 gallons of gas) take up a section of the bed, while an eight-gallon gasoline tank provides fuel during start-up and then reserve capacity when the compressed tanks are tapped out, allowing the bruiser a measure of operational flexibility.

2014 Ram 1500 diesel in the works

Chrysler has announced that a diesel-powered Ram 1500 pickup is in the works. It's expected to hit dealer lots -- and presumably, America's family farms -- in the third quarter of 2013. Set to be released as a 2014 model year vehicle, the oil-burning 1500 will get a 3.0-liter V6 wearing Chrysler's new EcoDiesel branding.

2010 BMW X6 M: Fast and fun--whatever the heck it is

Barreling around the racetrack, there's little lean entering the corners, plenty of thrust on exit and a monster amount of grip everywhere, and if it feels taxed at all, it's ever so briefly as the nose aims left and up from turn five for the steep climb out of the esses. Road Atlanta is plain ol' fast, and the BMW X6 M does well to keep pace, spilling gobs of power all over the track, blazing down the long back straight to nearly 140 mph, maneuvering like no two-and-half-ton pile of metal should. It's exhilarating stuff, to be sure, only we're left asking very many questions, and all of them are: Why?