It doesn't cost a dime more than its standard fuel version. (thestreet.com)
At the 2012 Paris Auto Show, Mercedes Benz showed off a number of alternative fuel versions of their popular B - class vehicles including a natural gas version and the B - Class Electric Drive (which was previously called a B - class E-cell). (myelectriccarforums.com)
Powertrains include flex fuel versions of the 1.0 L and 0.8 L three cylinder SCe engines mated to a 5 speed manual. (autosarena.com)