Your thought experiment incorrectly assumes trucks, cars, and motorbikes have the same number and size of tires. Trucks have more, larger tires to
allow for more wear between replacements.
Is it the magnitudes more though rather than 8x or 2x?
I've seen it often said that a fully loaded truck is equivalent to 1,000 cars wrt road wear.
Even accounting for tyre numbers and thickness/sizes, it doesn't add up.
> Considering that the truck has eight axles and the sedan has two, the relative damage caused by the entire semitruck would be 625 x (8/2) -- 2,500 times that of the sedan.
