Man the rear overhang on that is pretty bad for an off-roader. I don't see this doing well in the US, look at the Jeep Gladiator, it's not doing well compared to initial hype. At least for the Gladiator, the bed has all the negatives (longer wheel base, worse overhang, etc) and not enough of the positives (can't fit a 4x8 sheet of plywood between the wheel wells, etc). My understanding at least. I think they look cool and hope they do well but I'm with the others, a bit more rear seat leg room in a longer wheelbase "van" version may be more practical. I've got a crew cab 1/2 ton (2019 RAM) and even with a 5'5" bed I get hella annoyed doing truck things with it. It's nicer to park than a "standard" bed or larger, but is definitely a bit crippled as a tuck.
But the interior space sure is massive, road trips in it are fantastic!
Hopefully Ineos will get the kinks ironed out of the wagon before they get too overloaded with another model.