I have just got back in to this and have been buying a few cars (rc10b3, 2 lazer alpha, rs4 rally )to go with my old boomerang. All are equiped with radio gear and motors and i have a load of batteries (nmhd). I am planning on racing the rc10b3 but what would be the best thing to upgrade first, radio, motor/esc or batteries .
Cheers
Chris