My pal Mike has pretty much decided to get a P38 for second car / caravan tug duties. Estimates around 3,000 miles a year, keep at least 5 years. I've been roped in as the expert consultant to ensure he doesn't buy a money pit. Pretty much settled on a Thor V8. Even at V8 thirst he will save a bundle on payments towards the His part of His'n Hers cars. Given the fairly limited price range covering nice cars on wildly different mileages I'm wodering what the spending on parts over and above ordinary servicing is for various mileages.
I suggest he waits to find something in the 65,000 to 75,000 (ish) miles range which will cost a bit more but, judging by my car which I got at 77,000 miles with pretty much everything except one airbag original, around £2,000 should cover the expected replacements up to 100,000 mile range.
However he is also looking at cars in the 100,000 to 140,000 mile range which claim to have most of the first stage part replacements covered. But 100,000 to 140,000 mile cars seem to be £1,000 to £1,500 cheaper. I'm my view such cars are likely to be false economy but I don't have a handle on what extra replacements are likely to be needed and what the risk of serious engine work is.
Clearly anything beyond 150,000 will be just too leggy and has a good chance of needing engine work in his ownership. Which isn't going to be viable as Mike's looks at engine work like Marty does. Patch it up till the next pop isn't gonna happen.