My opinion, g/f's or wives hate their man's sports cars not so much b/c they are loud, stiff, jerky or whatever, but b/c they represent competition.

If my wife is having low esteem moment my cars are evil. When we get a sitter and have a nice meal and a she's relaxed, she loves driving my sports cars. She's a maniac behind the wheel. Hit 130 in the ferrari her first time driving it.

You gotta get you gurl into the latter mode, where she understands your sports car love is not competition.