I'm a less aggressive driver in outdoor offroad but I used to run mech brakes so it took a lot of heat off the motor and esc. Aren't you running without any body cutouts though?
I'm not an aggressive driver either, but my finger is either on throttle or braking, and I don't idle either when in the air. Guess that generated some heat as well.
I tend to keep my cars as light as possible, thus I have never experienced any temperature problem, hence I don't know how to drive "cool".
OR maybe I was lucky and got one of tekin's special motor.
I've got enough holes on the body, pretty much the level of cutting all vents, and 6 extra holes above the ESC.
*justpoet said esc fan doesn't hold on in 1/8 ebuggy, those hard landing will quickly destroy those fan blades. (blade will hit heat sink under hard landing and break itself, usually doesn't last a race day.)