Once something has left your ownership there is little you can do about how the new owner chooses to use or market it. A few years back I sold my 1969 Mercedes W111 V8 Coupé to a man who put it back up for sale at twice the price with a false history citing it as Australian factory delivered. It wasn't, it was Australian spec delivered in Germany and toured through Europe for 6 months before shipping down under. Tourist Delivery it was called and avoided some tax charges.
There is unfortunately a big difference in value here between a factory delivery and personal import, driven by something prevalent in Europe called rust. As my car had only spent 6 months in Europe rust was not an issue but it was still a personal import and not a factory Australian delivered car. A very nice personal import mind, which is how I sold it at a price I considered fair. At the time I tried to alert people to the truth but the car has since sold on several times taking with it a spurious history created purely out of greed.