Bought our Impala (base model) after I was hit and my 1992 Pontiac Bonneville was totaled. Ride is wonderful. Plenty of room for our family of 5 and can seat 6. I have had toruble with my turning signals ot working properly. We've had the multi-function switch replaced twice and it's now acting up again. Oddly enough, I can some times get the signal to work if I put hazard lights on while the switch is in place for turning. Playing around with it usually can get the signal going again. I wish we had bought the LS model. Our daughter is soon to be driving and she has picked out a 2000 Impala in the LS model. The ride is that good that she passed up the little Mitsubishi Eclipse! Impressive.
The smooth ride and the room. Handles like a dream in the snow.
I think ABS should be standard on all models. Mine does not have it and it has almost caused me some trouble a couple of times.