Our BMW dealer handed us keys to an I3 with 130miles of range left, first time driving an electric car, was a blast with instant acceleration and stopping power. Car needed new brake pads week later and were given X2.
My favourite courtesy car was being handed keys to a Ford fiesta and receptionist looking up at my 6ft 6″ frame and then shuffling round trying to find something I fit in. Drove away in the motabilty specialists own mondeo estate.
Only time we’ve not had one was for a short job, where we just had lunch across the street and car was ready by the time I paid for lunch.
I’d be annoyed if I couldn’t get a courtesy car for the day and would just take service job elsewhere.