Car scrappage schemes are back. After waiting in vain for the government to launch an official scrappage scheme to get dirty diesels off the road, car makers have taken matters into their own hands. But is this an altruistic move to help replace more polluting cars with greener ones, or are they just trying to flog more cars? And there’s another important question to tackle, are these scrappage schemes a good deal? Simon, Rob and host Georgie Frost take a deep dive into them – and the murky world of cars sales and finance.