We hired a car once in Menorca. My stomach dropped when they showed us the clio and I asked if they had anything else but unfortunately not. Obviously since it was french about 7 things went wrong with it while I was driving it the most concerning of which was a big piece of metal fell out of the engine. I tried to fit it back in but it appeared to have no use nor ornamaent and after some fiddling around I gave up and put it in the boot.
On return to the hire car company I expected to be stung massively for it through the insurance but felt the best thing to do was own up immediately, I was just driving along after all.
I took the rep to the car, opened the boot and showed him the crankshaft or whatever it was. He took one look at it, shrugged his shoulders and said 'It's French', and that was the end of the matter.
I'm not sure if this helps you or not.