Old address on V5C and looking to part-ex

I asked a dealer today what we should do, and he said as long as the name is the same (which of course it is!) it wouldn't be a problem. Whether he's telling the truth or just wants the sale, who knows!!

If it was guaranteed two weeks I probably would take it, but the government site says four weeks, only chaseable after six. I believe they're a lot quicker when it's transfer of ownership rather than a simple address change, as one is obviously more important (usually)

Do dealers swap cars around? I thought, especially when it's franchises, they guard their stock quite jealously?

Yep, I'm aware they're all custom as guessed by the sales team! There have been several that have been very close, so it's a matter of time until we get one with the right spec. We're using carwow to browse models (anyone know of anything similar?) and there's already several we might consider that would be "close enough".

Our old car is starting to reach the point where we might have to put a bit of work in (broken A/C compressor, dodgy starter motor which may or may not last much longer). I wouldn't mind fixing those things normally as we do, but given we know we're upgrading very soon, it's not a worthwhile investment really and it makes sense to cut losses and get a new car before something else goes wrong. It's a Volvo XC90 we're after (large family)

Honestly, I'm fairly sure something will come up very soon, there's already some out there we'd be happy with and we're not that fussed about a few compromises. Some stuff they can add after market anyway like a towbar. We don't want anything unusual, which is probably why there are so many that are close - as you say, the majority of buyers.

I've read on other forums that sometimes they can get arsey about swapping around if you already have one on order. And we really do need a new car sooner rather than later - this one is starting to reach tipping point where it becomes far less economical to repair. It's making sounds it never used to, and there's other niggly things that could suggest bigger problems. I don't want to run the risk of being stranded without a car at all, and months to wait for the new one to come in (or being forced to compromise more than we'd have had to because we're in a hurry)

I'm really not worried about fines - between the fact I've not had one the whole time I've been driving (20+ years) as I tend to keep to the limit and not take risks, drive only around 6000 miles a year and the active mail forwarding at my old address, I think it's extremely unlikely. They have my current address for my license anyway so if it was revoked I am quite sure I'd have heard about it by now.