The downside? Methanol is less efficient than either gasoline or ethanol. For example, a car that gets 10 l/100 km (23.5 mpg) using gasoline would get 12.5 l / 100 km (18 mpg) on ethanol and 15 l ...

The fuel could be diesel or methanol, while air ... In the future, fuel cells could power our cars, with hydrogen replacing the petroleum fuel that is used in most vehicles today.