Kia EV9?
As an addendum to my previous post at the top of this page, the thing that held me back from getting a second EV as our 'big' car was the fact that we have 2 teenage boys (I'm 6'3 and they're catching up fast), and we go on family camping holidays every year. My outgoing car is a Q5, and we also had to take a 540l roof box to get all the gear in. It was also short on legroom in the back as the boys have grown. The EV9 has pretty much the same footprint as a Q7, and it's absolutely cavernous inside (over 820l boot with the 3rd row folded down). The back row is also usable by actual humans if needed. The max range version has a real world range over 300 miles so you could get from Lincoln to Newcastle and back with only a 10 minute top-up charge.
If that's too expensive (I got mine nearly new which lopped more than 10k off the price), there's also the new Peugeot E-5008 long range. With the 3rd row down it has a 750l boot which is bigger than a Superb estate. No real world range data yet as the long range battery version is still on order, but with WLTP of 415 miles, you'd probably get 350.
EDIT: I will add, one big downside with the EV9 is that while it's basically the same size as a Q7, and narrower than most other large SUVs like a RR Sport, X5, etc, it's slab-like design makes it look absolutely humungous. Most car design uses all the tricks in the book to soften corners, draw the eye with crease lines, etc, but the EV9 is a box and as such it doesn't hide its size at all. Just looking at the Kia you would think it's considerably bigger than a full fat Range Rover. I realise this is going to be a big issue for a lot of people.
