15 kW generator with gasoline engine
The size of the engine in a serial hybrid vehicle is substantially smaller than in a conventional car. Therefor is 15 kW enough for small cars and lower middle class.  

15 kW generator with gasoline engine

The size of the engine in a serial hybrid vehicle is substantially smaller than in a conventional car. Therefor is 15 kW enough for small cars and lower middle class.

And with it uphill? No problem, the batteries iron the landscape flat. The battery is loaded downhill, the battery supports uphill, the engine can be dimensioned thus on the drive resistance with 130 km/h.