More information on the Lightyear One:
With a estimated 60kWh battery and a WLTP range of 450 miles would make it BY FAR the most efficient electric car sold today. In fact, at 133Wh / mile it betters even the EV1.
So, there's that.
They mention the peak solar capacity is 1.25kW, and that can charge 10-12 km/hour.