A.G.
We have a chevy impala as well...and we do the three carseats in the back too. We have an infant seat...and two 'cosco' front facing carseats. Allthough my daughter (and probably even my son) could be in booster seats...like someone else already mentioned...it's just easier to do the harnesses...it is a tight squeeze in between carseats...It would be kind of tough to get to the seatbelt on a regular basis...but if I just use the carseat buckles...it works fine! Good luck!