Wear-and-tear level can be better or worse depending on the condition of the vehicle.
It costs less to build a smooth road than to maintain the vehicles that use a bad one.
How much more wear-and-tear is inflicted on a car by a rough or bumpy road as compared to smooth tarmac? - BK
The wear-and-tear of driving at a moderate and steady speed in a straight line on smooth tarmac is nearly nil. Even gentle cornering, braking and accelerating will roughly double that. But what it is doubling is very little.
