NO chassis is driven to the RV OEM maker. PERIOD. They may be driven in OTHER countries to a shipping point, but ANY chassis (bare) will NOT be driven on US roads. If the chassis is BUILT in the USA, it is trucked to the RV maker. It is only driven off the transport truck to a field staging area AT the OEM RV maker. But, NEVER driven on a legal road. The mileage will be from the RV maker to the dealership. If you are concerned, just verify the mileage on 3 or 4 Class A new units on the dealers lot. B Chassis motorhomes are trucked from the RV maker to the dealer. C bodys are driven also to the dealer. Doug