I agree with Alex Miller COMPLETELY that improving one's driving skills is
often the best way of bettering your time. It's always easy to blame a loss on
the other guy's car, instead of "I just didn't drive fast enough." At the
National level of competition in Solo II, it's about 80% driver and 20% car.
Yet, on Team.net, the internet bulletin board for autocrossing, most people
want to talk about tires, modifications to their cars, what's allowed in the
rules, etc. and not about driving skill.
I suspect that it's easier for the technically oriented to discuss x tires
versus Y tires, Dual overhead cams versus single cams, etc. than it is to talk
about how you become one with your car, breathing techniques, etc.
Oh well, back to work . . .