Rented a Mercedes C, but they gave me an Audi A4 with 51,000 miles. Two days later, the axle broke in a parking lot. Called the shop for a replacement, waited over an hour for AA to come. AA said they couldn't fix it, contacted the shop for a car change. Was told to drop off my family and go 56 km to another shop to get a replacement. Got a Mercedes A, the process took over 5 hours. Was charged over 500 pounds, issue still unresolved.