What I don't get is this scenario....
A motorway service station that has rip off fuel prices is normally pretty busy, so let's say the average time to refuel is about 5-10mins from the time you stop to the time you drive off.
Even with the fastest chargers the average stopping time is going to be much longer, plus most electric cars have a shorter range than an ICE (typically 200 miles vs 400 miles) so surely there will need to be acres of charging space, not to mention the electrical engineering required to deliver all that power...