18R is a beginners class, and mostly to get kids interested.
What kind of vehicle were you running with CORR? What kind of speed control, servo, motor, etc? Some of these could be transferrable to a 1/12 scale car.
Brushless motors are the way to go for any form of RC these days, very little maintenance and much less costly than brushed motors in the long run.
The best thing to do is to come out and take a look!!!