Smuggling luxury cars is a big thing in Thailand. There is a 200% tax to import them. There are busts reported in the news now and then. Sometimes it's a shipment of "used" car parts which is really a container of disassembled super cars shipped in to be reassembled and sold. Sometimes it is cars imported by alleged students who were studying overseas and can bring back the cars they were driving for only a 30% import tax.

The police aren't much use for enforcing laws in Thailand, especially against the rich kids.