Mazda 6 is a very reliable car.
My car has been very reliable. I have owned it now for 6 years. Only problem I had was with the neutral switch. Had it fixed. Car has a nice smooth ride. Speed is sufficient. Comfortable seats. I have had complaints about the passenger side seatbelt not being too comfortable. Sound system is excellent. Has six speakers and multi disc player. I have had regular maintenance performed to keep the car running new. Only had front and rear brakes replaced once in 6 years and also rotors. Also had front shocks replaced once. Car has been very reliable in winter. No trouble starting. Handles well in the snow. This car use my second Mazda 6. My first Mazda was just as reliable. No major problems.