That is correct. But many potential customers walking over the dealer's lot will be wondering why the small car costs as much as the big one.
Those are customers that relate the size with the money... and is a pity that some people think in that form today.
For example, a F-150 must cost more than a Ferrari because is bigger and heavier?
The important issue here is the equipment and the quality of the materials of the car. A bigger Aviator in the basis form could cost less than a small but loaded Corsair. And many people with choose that Corsair over the Aviator. And is OK.