Olivier, how about the question I posed: Shaft-drive cars give a sideways torque effect, which isn't ideal. Why not use a bevelled spur & pinion gear and mount it longitudinally? And in addition make the gearboxes assymetrical like on the eight? (= motor in dead center)
What's your opinion?
I guess you would have to change both the spur AND pinion when changing ratio to get a good gear mesh. But you normally don't change that.
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