2007 Subaru Legacy 2.5i 4dr Sedan AWD (2.5L 4cyl 5M)
I wanted a mid-size sports sedan, and Legacy really stands out. Nothing under $21 K compared to it. I think engineering, not marketing is behind the Legacy. The 2.5 boxer engine runs smooth and provides plenty of power. AWD adds a whole lot to road performance (although it lowers fuel economy a bit). Interior is first class; no cheap material or gimmicks. Same outside; nice clean styling. Subaru says 95% of all its cars sold in the last ten years are still on the road. I tend to keep cars, so I'm guessing mine will be, too, and still look good.
2.5 boxer engine, AWD, clean interior and exterior styling.