According to this drawing from the patent, the intakes in the leading edges seem
to have had no function for the basic cooling sytem, maybe acting as oil coolers ?
Flitzer, yes, probably the best motorisation for a fighter variant, would have been a single
engine and probably a single prop, if there would have been no reason to counter
torque problems with a contra prop. I just wanted to point out, that Ettore Bugatti
himself proposed the fighter version, too, to be powered by modified car engines.
In itself quite a strange proposal to military customers, I think. Can't think of Willy
Messerschmitt, to have designed his lightweight fighter, which became the Bf 109,
around a powerplant made up of two Mercedes Ben 7.1 litres sports car engines, although
they powered very succesful the Mercedes SSK ...