So you bought a car to pick-up chicks and it somehow isn't working out for ya, huh? Shocking.
A car is a car. A Ferrari or a Geo Prism, its still a big hunk of metal with wheels. Women aren't animals that are lured in by some BS external factor. They aren't going to come flocking to you just cuz you have a cool car.
Do you buy Axe body spray too cuz of the commercials?
There was a guy at the car show I went to on Friday that had a sign on his car with his name, the type and model of his vehicle, his phone number, and the last line said "Status: Single". I had to get a picture of it, pure gold. Ironically, most people steered well clear of this guy at this show. Especially the women.
Just be you and don't worry about external nonsense. Your self-assesement of "fairly confident" might not be accurate if you are trying to get women's attention with a car and you make a post wondering why it's not working.
Sorry for the brutal honesty.