There are some 10.5 million alternative fuel autos on US roads today, according to 2006 sales data from R.L. Polk and Co.
The Polk sales figures also reveal that 1.5 million of them were sold in 2006, surpassing automakers’ sales expectations by 50%. Currently major manufacturers are offering 60 such models for sale including hybrid-electric (17 models from micro-hybrid to full), ethanol-capable E-85 (29 models), and diesel (13 models) and electric (1 model), up from just 12 models for sale in 2000.
A list of such autos available from major manufacturers can be found at http://www.discoveralternatives.com/.