First thing to do is check your tires air pressure. Factory spec is 29psi front & 36psi rear. I would drop to 28psi front & 32psi rear this alone will make a noticable difference. Changing to smaller wheels & tires will make a big improvement in ride comfort & the car will feel more nimble handling wise. I consider my S funner to drive with 17" than 18". Consult with Tire Rack to find a tire with soft ride & minimum width wheels for softer ride. You can obtain a Major improvement in ride comfort thru changing tires &/or wheels. Don't forget air pressure is key as well.
