Picked up the loan car and it amused me slightly that one of the previous users of this loan car (from the DayInsure paperwork left in the glovebox) was a guy called Elvis.
Dropped the car off, and found that the dealer already had a list of things to look at for me, so we left it at that. Main thing is the navigation account and the failed 3G/4G connectivity.
It is there for 5 days.