Spending a lot of time chatting about brakes, tires, turbos, etc. isn't always the best way to develop social skills. An amazing number of women are not entralled with a discussion of which brake pad is better on the track (my wife being one but she's already married to me so has to put up with a decent amount of it - gererally responding "how much will this cost?"). Some women would even talk about buildings and the bridge if asked about a Skyline. Those amazing women like the ones you find on here (Jess, Liz, et al...) are definately the exeception - not the rule.
So I guess we have to do all we can to help one of our own attract unsuspecting women into the fold.