2 years ago, Andrew Till (MrEV) did Land's End to John O'Groats in a KIA E-Niro. He did it in 20 hours, 49 minutes, with 6 charging stops and it cost him £57.95. The only difference was that he had a 2nd driver so didn't need to stop over.
Now, those 2 idiots should be ashamed of themselves, as the BMW was only 2 hours quicker, and the Taycan should have out performed the Niro. But put an idiot with a point to make behind the wheel, and that's what you get.
I must watch that, it looks fun.
I was actually wondering whether that route might be possible (with a single driver) in two days in an MG4 SE SR. It doesn't have the range of the Kia Niro and would need more stops. Mind you, Andrew has run out of juice twice in that Kia, while filming, and I do not intend to do that.
It would need the booking of a hotel with an available destination charger somewhere around the Preston area, I think. (Or I could just stay at Killington Lake and charge overnight on one of their two 40 Kw DC Gridserves, I suppose...) And quite careful mapping of all the reachable >100 Kw DC chargers near the appropriate points on the route. Food and rest would not be a problem, just getting somewhere to sleep.
If the Kia needed nearly 21 hours all told, I would have thought the MG4 would have needed longer than that. but I just put the route into ABRP and it says 18 hours 11 minutes total, with nine charges totalling 3 hours 34 minutes. (Of course, taking it on means you really have to do it twice, counting the drive to get to the start and the drive to get back home.)
I remain to be convinced, and of course as that pair demonstrated, shit happens. But if it could be done in 10 hours driving per day, I'd be tempted to give it a shot. In June, while the schools are still in termtime and the daylight is plentiful.