In he 60's at the local Ford dealership they used to sneak in the new model cars at night on a transport truck They unloaded them and would park a couple in the showroom and wrap them in heavy brown butcher's wrap paper so they couldn't be seen until the grand opening, a day they had cake and coffee and all sorts of giveaways. A couple would go out to the owner's farm where he hid them in a barn.
Fun times and the owner's son had bragging rights at school because he had seen the new model cars before we did!! We were all jealous