GMC has released several photos with the upcoming Regular Cab variant of the 2014 Sierra.

GMC has released several photos with the upcoming Regular Cab variant of the 2014 Sierra.

The 2014 Sierra lineup will eventually include three cab sizes and three bed lengths. These photos were published by General Motors in a press release talking about the truck's aerodynamics. Regular Cab and Double Cab versions of the refreshed Sierra are scheduled to hit the market this summer, according to GMC's official website.

The Regular Cab has a 6.5-feet bed and will be followed by a longer bed version quite soon. In the press release GM mentions the efforts put into improving Sierra's aerodynamics to diminish noises, vibrations and harshness, while at the same time lowering fuel consumption. GM says keeping the tailgate up is the best method for more efficient aerodynamics.

Full details can be found in the press release.

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GMC reveals 2014 Sierra Regular Cab