I will say my 2012 mustang is an ex-rental i have had it for about two months now and i have not had a single issue at all. I actually go the ex-rental at a local ford dealer. I had the car checked out before i purchased it and it was perfect. The car had about 32,xxx i am now about 33,xxx. I will say this car is a very big change from what i traded in. I use to drive a 2008 Nissan Titan. I love this car and i believe that all of my future cars will be a mustang. So as far as you looking at getting an ex-rental have it checked over and if it gets the pass then get it. I also got my mustang for about 16,8k.