So are these pics with or without grilles?Thanks for all the comments ppl!  It was by chance that I stumbled across the trailer, decided to try some different locations in a new area - think it paid off! And yes I did consider driving part of the car onto the trailer but seeing it was unsecured I didn't want to chance it.
The lower grilles are different on Anniversary models. I very rarely use them though, as they collect too many dead flies!