Any girl I've ever dated, and 90% of their friends have never bat an eyelash when a nice car drives by. You can drop the pussy magnet requirement of your car, girls don't really care as long as it has 4 wheels and she's not embarrassed to be seen in it. Only guys like us would whip around to stare at a nice ride.
Buy it for you, pick something you really enjoy driving. Personally I'd go Porsche Cayman, I've always wanted something mid-engine.