How long is the race?
I'm thinking that slow and steady might be the way to go or at least to begin with.
Does the cameras and control circuitry have to be powered by the main battery? I'd figure out the current draw of the extra equipment, nail down the control circuit then look at power. Figure the motor & esc draws about
20a, you'll have to measure the surge current with the car fully decked out, then see if the battery can supply it and the esc can deliver it.