Reality is that in 2040 latest you arent going to be allowed a choice if you want a new car. We are in a changeover period right now and inevitably the technology still has some way to go. But I would be surprised if our next family car / dog carrier werent fully electric.
If the car has a 300 mile range and you have proper overnight home charging facilities then for most people it would cover all their useage
Ref Reg's comment I wonder how you will recharge your electric car at home in 2040. The necessary improvements on range and therefore battery capacity will simply put greater demands on your home supply. Forget using a 13 amp socket, but recharging at say a feasible max of 11kW giving 50km/hr (as suggested by Ruut) will still need minimum of 10 hours for full charge, assuming you don't get trips from usage of power shower, heating or cooker during that time. It will also require a dedicated socket or charger hook up similar to that required for power shower. A dedicated supercharger point outside your front door will solve the problem but that's simply not going to happen within 20 years.
