So Democrats are the party of the rich people and Republicans are the party of the working-class poor? Kind of goes against conventional wisdom but you seem to know what you're talking about.
Regarding bumper stickers: Considering all the acts of vandalism against Republican headquarters recently, no smart Republican is going to put a Bush sticker on his expensive car and risk getting it keyed by some drooling leftist.
By the way. A friend of mine drives a 12 year old Buick with a headlight duct-taped in place and it badly needs a paint job. She has over a million bucks in assets. Go figure.