Here’s a copy and paste, not sure if it’ll cheat the system!
That’s where you really have to do your homework Anthony, you need to work backwards, if you see a car on Copart you firstly need to know how much a similar car would likely sell privately if it wasn’t damaged with regards to the condition, mileage, amount of current owners, Mot history ETC, then you need to have a very careful look at the photos on Copart and be aware that the photos don’t always show all of the what could be many chips, scratches etc, and you need to build in a contingency fund for that into your bid price, then there is the obvious damage, you need to price the parts, and you can get easily caught out if you are not careful in doing this, in the case of the car I bought, it was just a wing but for example a second hand Volkswagen headlight can cost £600
Once you’ve worked out how much an undamaged similar car would cost subtract 25% from that for a cat N and that’s basically going to be an approximate value for a cat N car, then cost in the repairs including paintwork, and delivery unless you’ve a trailer, then factor in your profit and that’ll give you a bid price, bear in mind your bid price must include the auction fees or you’ll be hit with a £450 surprise !
So my £1300 car is likely going to be a £2200 car by the time I’ve fixed it, though that’ll include a very extensive service as it’s for a family member, I’ll go the extra mile, thankfully these cars parts are crazy cheap compared to German cars which I’m used to.