I bought my Mazda6i brand new when it came out in '03. It performs great and it sure is pretty. But the build quality is a bit iffy. First a spark plug cable had to be replaced. No big deal, except that it took 4 trips and about 8 total hours for the dealer to figure out that was why the check engine light was on. Second, the transmission's inner shaft and axle had to be replaced at 20k miles after the car just died on me. I've had no other mechanical problems with the car so far. It now has 30k miles on it. But now my interior ceiling lining is actually falling off. There is no excuse for that. A $25k car's interior lining should not be falling apart after 4 yrs.
The design. Handling. Luxury features when fully loaded. Leather steering wheel with stereo controls standard.
Mazda should really figure out how to keep their cars interior lining from falling off after only 4 years. Everybody else did a long time ago.