[Nonfractal]

This thread has started me thinking on suspension options that have never  been produced for slot cars.
(Unless someone knows better) 

Fly front-motor cars ( solid rear axle with the spring propshaft) seem like a good first candidate for a suspension design that gets the motor weight out of the unsprung weight calculation. 

If the spring based prop shaft works, a UJ based prop shaft would be an improvement.

If that arrangement works, it could be further improved by using a floating motor mount.

Combining all of this into a design that supports long can motors mounted further back in the car would indeed be challenging.

Food for thought ?

AlanW