 I bought my Mazda 6 used and it was perfect... At first.. The first problem was the cd player. Only likes select cds and ruined every cd I put in it. Another problem I experienced was the interior. I don't know what kind of fabric it is but water.. Stained! Impossible to clean then it felt like my transmission started slipping but couldn't pin point it because it didn't do it all the time. Went from that to check engine light staying on to the wiring system being messed up to getting stuck in 3rd gear to stalling out. This is all in 3 years. I loved my car at first but now I will never get a Mazda again..!