1. the pusher pushes regardless of the SOC. If you need to pass BSFC for more power in extreme circumstances then so what. No advantage of series here.
2. some measure of series when you add an alternator to pusher, can size for continuously running fans/compressors/lights, but pusher has most of the power go straight to the wheels. Series only has no measure of parallel, series loses.
3. It's a dessert topping, it's a floor cleaner, not relevant to the discussion of range extending, nor a typical situation requiring constant loss of efficiency. Not even sure the tzero generator makes 120v@60hz.
4. pusher = 4wd, series loses (and pusher has redundant powertrains)
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