"The Mazda3 is more reliable than average across the board
While the seven years noted above are the most reliable Mazda3 years on average, most models achieve average ratings or higher regardless of model year. Dating back to 2007, only the 2020 and 2021 Mazda3 models dipped below the 75/100 range, both by a single point. With proper maintenance, a Mazda3 is typically good for just shy of 200,000 miles, with 0.5% of all models sold able to eclipse that mark, according to iSeeCars research. "