Ok, so lets say we didn't want 100% of the energy to come from those "self-sustainable panels on the car", but rather N%, so we keep most everything as-is, except switching all the outside body/chassi panels for solar panels, how much N% could we recover from that? Could it change so someone goes from needing to charge once every 3 days to once every 2 weeks lets say? Together with re-generative breaking, maybe it could at least have some impact.
You're off by an order of magnitude. It's a few hundred watts; an EV is consuming 10s of kilowatts. (Ignore the watt-watt/hour sloppiness, pls.) To charge my car 60% would take about 2 months. Ambient needs (battery cooling) would eat up more than I'd get back. At best it extends idle sit time.
How can a question be "off"? :D I literally used N% as to avoid replies like this, but seems you managed anyways...
> To charge my car 60% would take about 2 months.
Depends heavily on where you park and where in the world you live, wouldn't it? I use my car maybe 2-3 hours per week, most of the time it's just standing outside in sunny Spain, would that change the calculation anything?