[Lexman8]

Once you have access, you can't see the spec of your car until after it's built so you cannot check that the order is correct.

I strongly suggest you ask the dealer for a 'factory order printout' so you can double-check your order. This will list details of the basic car plus any options you have specified. Only by doing this did I discover that my first car had the wrong wheels specified. The dealer can change the factory order up until a few weeks before the build so you might also want to ask what that cut-off date is.