Moved to Car's & Motoring
I personally give the car a very good check over for any scuffs to the exterior and interior wheels etc.
A quick under bonnet check of all the fluids, I have had many new cars and never had any problems on delivery apart from the odd scuff mark to the interior.
Check you get the proper fuel level that was agreed prior to purchase had that a couple of times when promised a full tank only getting a quarter tank.
Check over all the paperwork and don't sign for anything unless you are happy with the new motor.
Freebies are usually agreed prior to the sale, but always ask for something especially if there is any delay on handover or if there is anything your not happy about the car.
I would think everything will be OK and you will have many many happy miles of motoring ahead with your new purchase