We just did an Inspection for a customer of ours buying a used car from a local Nissan Dealership. They knew we were doing a pre-purchase inspection and released the car to us with no problems. We put it on the lift and instantly spotted the biggest oil leak along with front brakes worn and requiring replacement and synchro gearbox issues! Emailed them the job sheet and they just cleaned the oil leak and said everything else was fine. They hadn't even inspected there own car before a sale! Dealership have that many used cars going through them quality suffers!