Vehicles get to the dealer with about 1mi on the car. Then the do the PDI, pre-delivery inspection, so depending on who safeties the car, you usually have about 2-4mi on the car.

After that, its moving around the cars, test drives, salesman joy rides

You get the idea.

btw, mine had 2mi on it I bought it with the plastic still on it.

 

1.3 miles on mine, still had plastic, I have a pic after I signed that paper of the speedo.