I was wondering wut would be a good "Mini" ESC for my 18T?????

Novak XRS is great !!! But you will also need a streeing servo and rec'v.

XRS is great but just barely fits and you may have problems if you use motors with dimensions similar to the Reedy motor, I have a Quantum Reverse (not the micro) in mine and it works awesome.

We've had very good luck with Futaba MC230CR ESCs in our mini cars.

I WOULD NOT use the Novak Micro GT....it SUCKS.....go with the LRP Quantum Sport. It fits in the chassis and is blue!