A better comparison is old cars and new cars. Creating waste is not the only purpose of cars, but manufacturers sure do like to push newer models for the sake of sales, disregarding the waste problem.
Right now my 40 year old car still runs just fine. But that's because public infrastructure still supports it. With tricks like manufacturer-specific garages and forced software obsolescence, a car I buy today might well not be usable in 40 year's time.