They can do all sorts of things with a VIN,
especially if they have any other info - like the sort of things they may have gleaned off an Ad &/or social media sites or other parts of the internet!! After all,
you already know a lot about that Spyder you're looking at, don't you?? Surely you know the manufacturing year, the make & model, the colour, etc, don't you?? :dontknow:
Heck, as stand-alone info, it might seem useless you at first glance, but it's not too hard to find out that one of the fellas looking at that Spyder had an old Peterson lighter that fairly recently quit working on them, and they were surprised with the gift of an IM Corona Old Boy lighter by a bunch of friends as a replacement; and that same potential buyer also likes pipe smoking and really enjoys SG FVF and Rattrays Marlin flake tobacco - all info that might appear to seemingly useless and un-related, but nevertheless, it could prove to be valuable to someone who could be trying to pull a swifty &/or rip people off! The crims even have 'dark-web sites' that gather and sell just that sort of seemingly useless info; as well as sites that match it all up to the person concerned in order to see if there's anything they own/have that's worth ripping off! :sour:
So, even if you disregard the lighter & tobacco info (or possibly,
especially if you disregard that info!

) given all the info that the World likely knows already/has access to about that Spyder,
AND a VIN too, a criminal type could do all sorts of things - in fact, if said crim happened to either work in &/or if they don't but they've found someone a bit unscrupulous who does work in a DMV (maybe not even in the same State!) who is prepared to take a bit of cash to ask no questions and push thru some dubious paperwork; it's not such a big stretch to think that they could 'clone' or 'steal' the apparent ownership of that vehicle on the strength of the VIN & other info they've gathered without ever actually having the vehicle in their possession; then they could saaayyyy..... start pulling robberies, racking up tickets, unpaid tolls fees etc. that could eventually all be traced back & charged to the real owner; or maybe they might falsify some paperwork showing them buying that vehicle so that at some stage down track, the
THE REAL OWNER ends up being charged with the theft of their own vehicle, causing the vehicle to be 'repossessed' &/or impounded until the ownership/responsibility for all the criminal acts that vehicle has been involved in get resolved!! :shocked:
Sure, that sorta thing
shouldn't happen, but there are crims & criminal organisations out there who spend every waking moment working out all sorts of innovative ways to do things just like that - And it's my understanding that pretty much exactly that ^ scenario outlined above
HAS happened over in your part of the World, resulting in the '
real owners' having to prove in court that it
REALLY WAS their vehicle, and that all the fines, unpaid tolls etc racked up by the falsely identified vehicle weren't their responsibility, and that it was the
other 'owner & registration' was the dodgy one!! :banghead:
So the fella selling that Spyder is likely following the advice their local authorities give out to try and minimise theft &/or scams during the private selling of any motor vehicles, and
YOU asking for unique identifiers of the vehicle they are selling in the way you have, even before you've committed to buying, might be ringing all sorts of alarms, possibly even getting reported as an attempted scam &/or theft! nojoke