[DieselDoctor]

After working in the utility industry for 30+ years as a mechanic and also managing the NGV (natural gas vehicle) program for 6 of those years, I have learned a lot about the misconceptions and "dark marketing" that alternatively powered cars are hyped as.

Compressed natural gas is relatively cheap compared to other fuels, but the conversion hardware is expensive and the cost of home compression (a selling point) puts the total payback out beyond 15 years. LNG - Liquefied natural gas is even more expensive and there are few refilling stations so far.

Electric vehicles have all the costs as mentioned in the above posts. Higher initial cost, battery replacement costs, and one cost not mentioned - low or no resale value due to the cars battery age if not replaced. The electric car industry loves to call electric cars green and zero emission. Both are false. Electric cars may not have tail pipe emissions, but the power plants generating the electricity do. We referred to them as REV. Remote emiting vehicles. And how green is it when we have all the heavy metal environmental issues of battery mfg. and recycling?

Treated gasoline engines producing low emissions will most likely be the best option for a few more years until hydrogen fuel cells are perfected, although hydrogen has it's own problems.