All cars get driven before they're handed over to the customer. They're driven on and off ships, trains, trucks and in and out of the car park/dealers yard (which often isn't that near to the dealership) and then they do a full road test to make sure it's all ok before you get it! Plus this one has been to an aftermarket tuners to be remapped, so most likely will have done a few miles on the RR and a few more on the road there.
Ah, I see. Forgot its been mapped. Just hope whoever drives mine before I get it is kin careful LOL