2006 Chevrolet TrailBlazer LT 4dr SUV 4WD (4.2L 6cyl 4A)
I kept this car for three years and put 70k miles on it. Never had a single problem with anything on it. This is a very well-built vehicle. So much so, that my replacement for it was another TrailBlazer, a new '08 that GM had heavily discounted.
The straight-six is bulletproof. Gas mileage 21 on highway, 16 city.
The stock stereo was weak. I replaced it. My new TrailBlazer has the factory-option Bose system which is a big improvement.