Very little, if anything post 2000 that is mass production. The main issue is the increasing use of electronics which will cause cars to scrapped for even tiny problems. A guy where I work has a Cougar (not kuga) and had to pay £200 for a scrapper just to get an ABS sensor off it. My mates other half has a peugeot convertible that has so many electrical niggles it's scary. That combined with constant updates that are not interchangeable will make the situations even worse.Compare that to the mini where the engines were very similar over forty years of production. The only cars that people will care about are the unusual and sporty ones but they will tend to suffer even more as they are more heavily loaded with elastic trickery. Cars have become disposable which further affects the chances of survival as every car goes through a banger phase. I remember a neighbour of mine when I was a kid buying an e type for £300 and my dad thought he was crackers.
Ford Puma's and Cougars, that brings back some memories....lets throw in the Vauxhall Tigra then...