I am pretty sure it was the same car, it was in FerryBridge carpark, near Chesil beach/Portland.I don't recall being in Weymouth - are you sure it was not Poole?
Re. the GTA wheels - all the 2.0TBs I've seen seem to have these - possibly they were the 17" option.
I'm looking for information as I'm trying to track down the car's European Certificate of Conformity and save £150!!!