how does using smaller tyres on a car improve it’s range/fuel efficiency?

Question

From my theoretical understanding shouldn’t larger tyres give you more range? My reasoning being that larger tyres = more distance travelled in a single rotation.

In: 1

Answer 1

Smaller tires = less energy loss to friction. Same reason why trains are super efficient – very narrow wheels that only make contact with the rail, thus you need much less energy to drive them.