GMballistic this scam is along the same lines... asking me to sign up to google gsd. He/she/robot seller has said I can "inspect" the car before it is delivered to me, however they are offshore and and will not be able attend. They also told me they had owned it since 2012 when the registered keeper was changed 2 weeks ago(HPI check...), possibly changed husband-wife or something like that but I doubt it.
A big AVOID from me.
I sincerely hope anyone looking to buy that car reads this and the link above and gets wise to it.
Thank you for all of your help guys!