Alternative fuel vehicles are going to become more widely available in 2014, with offerings from the likes of big-name motor companies Ford, Nissan and General Motors.

While Nissan plans to roll out an electric version of its NV200 after the new year, Ford and GM are developing hybrid cargo vans that will run on compressed natural gas (CNG). CNG could mean huge savings for fleet managers — up to $2 less per gallon than the typical diesel fuel.

“Natural gas is less costly at the pump and significantly reduces carbon dioxide emissions, compared to other liquid fuels,” says Ed Peper, U.S. vice president, GM fleet and commercial sales.

GM’s GMC Savana full-size cargo van will be equipped with three CNG cylinders (giving drivers 200 miles of driving range using CNG) and separate fuel tanks to give drivers the ability to alternate between regular gasoline and CNG. GM has scheduled production for this next generation of GM cargo vans for early 2014 and will retail starting at $26,710.