Loans at e.g. luxury-brand dealers are sold with the expectation of payment. There are other business models, however. There are some auto "dealers" who are really just rental places with another name. When they repo a vehicle, they perform the minimum of service and repair and then it goes back on the lot. A 7yo used car doesn't really lose any value from adding 5000 miles to the odometer, so the exorbitant finance fees go mostly to profit.

Vehicles that get absolutely trashed are a loss, but that's why the lenders want every repo to be a surprise to the creditor.