Although GM continues to contemplate a larger, medium - duty Silverado offering to compete against Ford's F450 and F550, changes will be otherwise limited to natural gas options in 2012, and a facelift for either 2014 or 2015. (automobilemag.com)
The volume and price supplied by Russia will impact the marginal gas options for remainder of the market. (carbontracker.org)
While we fully expect the new C - Class to once again offer gas options, diesel options (no diesel in the U.S., though), and a plug - in hybrid option, most of the official drivetrain specs are still under wraps. (topspeed.com)