poorthingflint 
2013 Toyota Avalon Sedan XLE Touring 4dr Sedan (3.5L 6cyl 6A)
High tire pressure ride problems.
 Recently bought this fine vehicle and almost didn't because of harsh suspension response when impacting large road patches and other road irregularities. Drove another car before the one I took home for the little woman to see and drive. Both cars had 18" Michelins and were disappointing in the way they reacted to serious road imperfections. Driving the car I ultimately bought decided to check the tire air pressure. All tires checked just a little shy of 40lbs. Obviously being over inflated by at least 6lbs will cause the ride problems I noticed.With the correct tire pressure the over all ride improved drastically. I would suggest before you road test one check the air pressure.I have traded this vehicle. Overall a very fine car but if you drive with both feet I.E. brake with your left foot and apply throttle with your right you can trigger the brake override safety feature which means you suddenly loose power for about 8-10 seconds. This was a real safety issue for me and as such was a design flaw. We had decided we would be better served with a SUV going forward and I did not want another Toyota product for obvious reasons. Fortunately there are some good choices out there and we are very happy with our new SUV.