Hopefully 1 of the 4 additional security measures will stop it from going.Lock it, or lose it, as the saying goes
Who knows, he never took my son's land rover so not too worried about mine.l don't know how it could be a scam, unless they plan to make you a silly offer hoping you'll accept.
lf they planned to steal it, what's the advantage in leaving a note on it. Unless the plan is to car jack you on the test drive.
Oh i've had those sort of notes before, but from a local scrapyard. At least they used their own business cards...