Our N reg Polo had 105k miles on the clock, needed a new exhaust, was due another cambelt change, was a bit smokey probably due to valve seals, and would sometimes take 15 minutes to start in the morning.
This wreck was worth precisely nothing, or potentially £100 with an MOT. However, thanks to UKGOV, it became worth £1000 to the government and £1000 to VWUK. This in conjunction with online deals and the high demand for my new car, means that I could still sell the car for more than I paid for it, and it has 3k miles on the clock.
So thanks UK taxpayers, next one's on me! I guess all the people that are providing only one side of the argument are failing to realise that it's beneficial to certain groups of people, and are probably a bit annoyed that they cannot afford a decent new car under the deal.