I think I have narrowed my search for a car down to the 4-tec or the ntc3. I want speed, but handling is a must. I want to race, but it seems the 4-tec is not nearly as well suited for racing as the tc3. I cant find much about converting the tc3 to a 2-speed, so is it expensive and hard to do? I'm just looking for some help from some people who know, cuz I don't.