Natural gas can make it in buses and DME made from natural gas in trucks, but NG will not make it in cars for obvious reasons.
actually durring WW2 wood was used to power cars due to gasoline shortage.
What are you going to do if we got no gasoline ?
I guess we are making it from tar sands. Better to just use natural gas. but I don't like fracking. So I guess I should run my car on wood.