Car development is an expensive time-consuming activity. This requires a huge fleet of pre-production cars for things like on-road testing. Usually, once a car is ready for sale the pre-production cars are crushed. That is unless you're VW.
VW is still reeling from their diesel emissions scandal that rocked the automotive world and sullied the reputation of VW around the globe. VW is working hard to gain but the trust of the public. They're paying back fines, making electric cars, killing off diesel, but this new scandal could destroy them.
Imagine going to a VW dealership to buy a brand new car. You're spending a lot of money here but you want something new to cut down on future repair risk. You put down your big down payment, get some decent financing, and drive home in a capsule of new car smell. But you find out your car was never intended for sale.
This happened to almost 7,000 people. 7,000! According to a German website Der Spiegel, this has been going on since 2006.
VW's legal issues are far from over. Diesel gate is far from over even if the public has already forgotten. With this new scandal, it's hard to trust them period.