Guys,
It's very, very normal for a "new" car to have some mileage on it. Every car coming off the line is driven around a test course to check for things like squeaks, rattles, etc. as well as many the function of many of the options...the factory tries to catch such problems before shipment. Some cars get picked form more testing.
Mileage will vary but in the overwhelming majority of cases, any mileage you see is likely to be "factory/shipping" mileage and not just someone out joy riding.