Action 1/24 2006 diecast cars have big improvements. For starters, the window nets are made of cloth and every 1/24 car made has a VIN/Serial number. The VIN/ Serial number is visible through the rear window on the deck, the most secure place on the Action car. You have the option to register each diecast on Action�s special website and you can print out the title to your car. If you sell a diecast car, you or the new owner can go onto the website and transfer titles.