Hey bschloop,
No you definitely have a very valid point ice and snow is no good for any amount of wheels and Michigan definitely has its fair share. Out West we chain up or used studded tires this seems to help. However with trikes that have a single driven rear wheel such as mine traction is definitely not going to be as good as one that has both wheels up front engaged. The trade off is I will get a little better fuel economy out of the single rear wheel drive. If I need more traction I will just chain up which for me does not happen that often.
I think the best would be a single rear wheel drive from an ICE with an electric motor up front powering those wheels. This would give you the potential for all wheel drive when needed or desired. This adds weight, cost and complexity but gives you some advantages in times when traction is needed during bad weather situations.
You eluded to the fact that often the driver determines the outcome and this is very true but there are times when even a good driver has no chance without the proper vehicle in a given situation.
Nice points bschloop,
GreenHornet
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