I wouldn't call it fake and certainly in UK its standard practice - we call them pre registered. They get registered to the garage to fulfil a quota, then the garage sells them on a short while after with a large discount. All pre registration does is skew when the sale took place, possibly by only a few days - it doesn't create a fake sale.
I got over 1/3 off the price of my last new car, not a VW I should add, at the loss to me of having an additional keeper on the registration certificate and the Tax and MOT coming up in the previous month. When I purchased the car, it still had all its delivery and protection stickers all over it and 4 miles on the clock - so had never been used. When I collected it it had been fully PDI'd and was fault free which is more than can be said about our Model 3 which was delivered with no PDI, a few more miles on the clock and took 5 service visits to sort the delivery faults. Teslas version, at least in UK, is to rush delivery of cars without PDI to meet the quarter end deadline then let the owner find the faults and come back and get them fixed at their own inconvenience.
