Welcome!!
1. Most soft tops are a bit louder, you kinda get used to it. There is a company that makes a liner for the soft top. Dont remember the name, but the companys in Europe I think.
2. You could view this as used, I'd sure try and see if they come down on the price. I doubt they will though because we're coming into the convertible season and if you dont buy it someone else probably will.
3. I doubt the ground effect are gonna slow the stewie down any, I'm curious to know what they are. I'm thinking they might be Comptech's, which is what I have. Not sure about the rear spoiler. Do you have a dealer link to the car?
Do the sideskirts look like this (click on image)?
