Ok, here is my latest....
Automobile manufactures love brand loyalty....hence, what if when you traded in your car for one of the same brand...that everything was already programmed into the car. All GPS addresses, Music stations or HD, comfort settings, seat postion, mirrors....etc. Once you have the measurements you could extrapolate the position of the seat and mirrors to the new vehicle and the owner could fine tune it. (Engineer dude could do this one...)
You would never think about switching brands because the info cannot be transferred to another brand. The first brand who locks this up owns the technology.