that's not necessarily true, people will still like their large cars. Gas cars aren't big because they run on gas, because motorcycles run on gas and are very s

that's not necessarily true, people will still like their large cars. Gas cars aren't big because they run on gas, because motorcycles run on gas and are very small. Also the cars would have to be smaller than motorcycles for them to reach the density of a bus at which point they will cease to be comfortable.