Trip Around Iceland

Waited nearly half an hour to pick up the car and over half an hour to return it. The return location was unclear, so I asked the staff and they told me to park outside. I ended up parking at the entrance and they didn't say anything. I rented a Ford Focus but was given a Mazda 3; not sure if they are in the same group. If anyone knows, please let me know. The car had scratches and other damage when I picked it up, but they said it was fine and just to take pictures. The car was fairly new, but there were constant warnings about issues like the passenger airbag and front radar malfunctioning. I called the rental company about it, and they told me to handle it myself. After insisting, they finally helped. I drove to Akureyri where they had a branch to get the car checked, and it was confirmed that it was safe to continue driving, but overall it was not very reassuring.