Unless the car has been purchased by a football (soccer) player it is unlikely that the new owner will make a big deal about this on social media, or anywhere else for that matter. I am a little curious about who purchased the Mercedes Benz W196 at the Goodwood auction in 2013 (yes 2013!) but only a little and could have a sensible guess. Perhaps I have missed who the owner of the W196 is but it does not really matter. The owners of these cars will be known one day, or they will not. If someone wants to keep something like this a secret, they will. It is not a secret though: lots of people will know but not the people who are likely to tell us. Patience young Grasshopper!