 The Mazda 3 arrived after the 6 and has had who knows how many infotainment updates, yet the 6 still hasn't had one in North America, and as a result a lot of the features run into problems (like playing songs not associated with the title displayed, dismally slow connectivity times).Mine has had transmission problems since I bought it, with many appointments and now resolution.The interior bits (especially the tilt steering adjustment) have started vibrating on even smooth roads.rear brakes clunk when releasing.Poor sound insulation.However, it handles nicely and gets pretty good fuel economy.