2007 Chevrolet Impala LTZ 4dr Sedan (3.9L 6cyl 4A)
My LTZ now has 59K on it (purchased used 2 years ago with 24K). It's a good car with minor issues, especially if you compare the price point to similar makes/models. I have full confidence in the reliability of my Impala. The problems I have had so far are merely minor annoyances: TPMS, wind-noise, alignment issues.
The fold down rear seat is wonderful. Attractive interior and exterior design, roomy interior and huge trunk space. Engine and transmission also offer a smooth ride. Exit and entry lighting is very convenient as well.
I've read multiple sources of trouble with rear tire alignment- mine is no exception. Its not a problem for me, so long as I meticulously rotate and inspect tires. I could do without the tire pressure monitoring system- i.e. sensors going out and acts up in hot/cold weather changes.