So here's an interesting concept, which I'd never heard of....
In Poland, many cars, even cars direct from US car manufacturers, are designed to crank using gasoline, then switch over to LP gas during driving -- because LP is cheaper.
You can purchase the LP at the station where you purchase gasoline -- filling both tanks at the same time.
Consumers can also add this LP feature after purchasing the car, but this means the LP will take up space in your trunk.
Do we have this in the US????
