I've owned a z24 for 7 yrs. Bought it off lease with 50k and its been very reliable, cheap transportation. Never had anything but routine maintenance and minor stuff to do. I am actually surprised at how good this car has been as I didn't expect too much from a cavalier except economy. Everything about it is economical (repairs, mileage etc). Handling is good. Ok in winter but better get real good snow tires.
reliability, gas mileage (28-30 mpg)
road noise on highway, heater fan is crap at low setting