No, Gareth is talking about stocking someone elses premises with a few of your own cars. They sell them, keep a bit for themselves and give you a small bit on top of what it owes you. If you're rolling in it and can provide someone with 20 cars then it's a great idea. If not, don't bother as the 1 or 2 cars you provide will be the last ones they try to sell probably! It's the way it works.

Underwriting is when someone [for the sake of argument a maindealer, let's say Hondas - but not the location, make your own contacts ] rings me up and says "I have a lady here wants to part exchange her 2002 Civic SE on a new one, how much would you value it at?" I tell them what I want to buy it for and Voila I have underwritten, or promised to buy, that car at that price.

If you want to see a copy of the sales invoice I use on cheap part exchanges [sub £1500] declaring no warranty, I will try and scan it for you tomorrow as I've taken the day off and I'm currently wanking loads on the internet

Thank the years of physio and special correctional shoes with calipers they made you wear when you were younger for that.