 I have owned my Mazda 6 for six years. I bought it when it had 12,000 miles on it. As of this writing, I have 156,000. I had one major repair of the transmission that cost $900. I'm about to get the driver's side automatic door locks fixed too. Besides that, only normal maintenance and upkeep.  My only gripe about the design is that you have to remove the front tires in order to change the headlight. I'm not kidding and they go out frequently. I got used to it though. It is the best car I've ever owned. I would buy it again in a heartbeat.