Sounds like you really loved the Challenger!!!
Maybe should have kept it?? The Challenger should feel bigger because it is. It should ride softer because it is heavier. Alot of people love the sound of the exhaust. Not too load until you get into the gas. As far as "the chall sits taller and is higher" a sports car is not suppose to be high that is for 18 wheelers!!!! As far as your plastic piece popping out, whats causing that is a plastic clip. I choose Camaro!!!!