I bought my 2003 Mazda 6S brand new. For starters, I had to get new rotors every 5K miles. They warped constantly. At 45K, I had a total of 8 new sets of rotors! They finally checked my calipers and found out I had a stuck caliper that was causing it. My transmission had to be replaced at 48K, as well as the transmission controller. The transmission started slamming from about 8K between 2nd & 3rd gear. This car has been nothing but a LEMON! I would NEVER buy another Mazda product. The dealership accused me of driving the car hard! I am not hard on a car. They could not figure it out so they tried to blame me.
Design a better braking system, train Mazda technicians better, Design a better transmission.