If we assume that the motor is operating at 98 percent efficiency (improbable but not impossible at that power level) then that’s 11KW of heat to carry away. T

If we assume that the motor is operating at 98 percent efficiency (improbable but not impossible at that power level) then that’s 11KW of heat to carry away. That is similar to an ICE engine of 18KW, which is light but not extreme at 13kg. Even at 94 percent I’d say it is going to be in the ballpark of cooling requirement to ICE, which we are now pretty good at keeping under control. That’s pretty remarkable.