@Grant5 and
@Properjob Good luck with getting this sorted out. If it's any consolation, I took delivery of my van 2 weeks ago before any of this news broke, and whilst I'm really pleased with the van, I'm also wondering whether this could turn into a depreciation problem for my van and/or a load of hassle for me. If I were you, I think I'd rather it was sorted before I took delivery. Ultimately if it can't be quickly sorted, then you are probably best off keeping the money in your pocket and depending on what the outcome is you can either take the vehicle knowing all the information, or consider if you have the option to reject it if it is not what you were led to believe it was when you ordered it.
Anyway, good luck re-working your plans, and hope that this is sorted quickly for you.