2006 Buick Lucerne CXL V6 4dr Sedan (3.8L 6cyl 4A)
This is one of the quietest cars that I have been in and that includes my brother's Mercedes. You ride in complete luxury while traveling down the highway. It is also one of the best looking cars on the road.
Design, soundproofing, cooled & heated seats.
Add a manual trunk release. This should be done on a recall.