Thanks for that. Is the X5 45e or new Q7 55/60TFSIe worth the 20-30k premium over the pre-facelift Q7? I honestly don't think so, because I'll lose that £20k in depreciation during my ownership.
X5 hybrid only has 5 seats either, but the Q7 at least has a proper middle seat, which means an adult can fit between 2 car seats.
Will check out the Q7 forums. I'll have to find one locally then with a warranty rather than importing from Germany and risking financial ruin. Interestingly, the air suspension isn't covered by the warranty as it's a "consumable"....