you can use almost anything to autocross if it's setup right. civics are good base cars. i race a 2000 accord EX 4door. i've only gotten to compete twice because of work and other things coming up on race days, but i've taken 1st place in STS both times i raced. road courses are fun too. i've taken the accord and my civic si out to the track and my accord did the most damage. i shocked alot of people with how fast the car is on a road course, and autocross tracks. with the suspsension, brakes, and tires setup correctly, this type of racing is really dependent more on the driver's skills than the car. like civicsiracer said, it really is 90% driver. that's why i love racing so much. drag racing is weak in comparison because a bad driver could win with enough power. work on your suspension, and practice your driving skills as much as possible. but watch out, once you get started you're gonna be hooked lol