Could be due to the new model being out soon.
I doubt it Elliot. BMW haven’t even released any details or photos of the new X1 yet, which means that it almost certainly won’t be released until well into 2022 (which fits with what my dealer told me back in March). When orders commence (a few months after that) I suspect that there will be a delay of some further months again until it appears on the Motability scheme, as initial priority will be given to private customers.
I’m guessing here, but following the removal of the Q3 and GLA from the scheme, plus £1200 increases in AP on the XC40, I suspect that there’s been a surge in X1 orders from Motability customers looking for a small premium SUV and BMW are already struggling to fulfil orders from private customers (where demand is still incredibly high, in spite of the impending new model).
It may be that as soon as official details are released of the new X1 retail demand may slow and then I wouldn’t be surprised if the current X1 returns to the scheme for a period until production stops, but of course it’s all guess work, as is everything to do with Motability!