How to sell a 2nd hand car ...

Prothet_of_Doom

With blown head gasket it might be worth £120 weighed in at a scrap yard, Repaired it could see another 50K out of it.

Typical Head gasket repair is £500 MAX, (100 in parts if you do it yourself) and a secondhand engine fitted would probably cost the same.

Your car fixed is worth What £600 maybe £800, so Yes I can see why you think it's beyond economic repair.

Personally I go for the better the devil you know attitude to cars. Has this car got any other significant issues? If not I'd get it fixed.

It's going to cost you £3K to replace it. (A guess is that you'll buy a new car on easy credit, at £200 a month over 360 months?)

Personally I think head gaskets have become a service item with some cars. Fix it.

bodgerx

If the tyres really are new flog them on eBay and send the car to the scrappy. You will find the max value this way I think.