More time to type now. I'm a high mileage driver because of my job. I've only once bought new. There's another thread going from "nakkers" about his various company car selections. His company buys new and sells them with ~ 100,000 km. In my situation, I can buy whatever I want, I own the vehicle but I get paid mileage at the max rate that Revenue Canada allows. If I buy something that is cheaper to keep going than what Revenue Canada allows then I keep the difference. I've found it best to buy something with ~ 100,000 km on it and drive it until it is no longer economically viable to keep it going. Obviously this means fixing stuff from time to time. It comes with the territory of driving older vehicles.
Bought a 3 year old (at the time) 1996 VW Passat TDI, manual, with 95,000 km, sold it 7 years later with 462,000 km on it. Things gone wrong along the way ... strut bearings, wheel bearings, shocks, the power supply for the instrument cluster (this was a trouble spot on these cars), a few nuisances with door latches and locks and the like, and I had to get the air conditioning fixed once. Never had an issue with the engine or the transmission. At the time I sold it (10 years old) it had original engine, original turbo, original injection pump, original transmission, original clutch (but it was starting to slip), and the body was still generally in good shape but you could see the rust spots starting to poke through. When I sold it, the first person to look at it brought his mechanic, took a test drive, and bought it ... and the mechanic said that if the other guy hadn't bought it, he would have. Few little headaches here and there but this was a good car. It still drove pretty much as well at the end as it did to begin with.
Bought a 2006 Jetta TDI manual new to replace it. This was a good car. I eventually sold it with just short of 430,000 km on it and only by that time did it need to be taken off the road for a month to fix stuff. Only thing that was something of a headache during my stewardship was wheel bearings ... all four corners were replaced between about 170,000 and 240,000 km (so it was overdue for the second go-around). The overrunning clutch for the alternator was another little nuisance; had that little sucker break twice. By the time I was done with it, the clutch was finished, the EGR cooler was leaking (trouble spot on this engine), it had what I thought was a seized strut bearing but which turned out to be a broken front spring, and it was due for timing belt and water pump. Original A/C, original engine, original turbo, original transmission, original clutch but as mentioned it was finished. Depreciation + repairs was around 10 cents per kilometer. Fuel was around 6 cents per kilometer. Not bad.
I have now separated the bike-hauling duty from the daily-driving duty, with two separate vehicles. The tow vehicle is a 2014 Ram ProMaster full size van bought new. The beater is a 2008 smart that I bought cheaply (6 grand) with 90,000 km on it and which now has 225,000 km on it ... and I've done nothing but regular oil changes, and the spark plugs and air filter a couple of times, with the only expensive repair outside of that was doing the struts and springs at around 125,000 km - these things have cheap OEM suspension parts so I opted for a Bilstein kit. Obviously this car is no VW diesel and I never expected to get 400,000 km out of it ... at 225,000 km I'm well past having my money's worth. The end of this car is in the foreseeable future. I know there are worn-out bushings and sway-bar links in the front end, and I know the clutch is knackered. And the air conditioning has stopped working. And the "check engine" light comes and goes with a P0410 code (secondary air injection) that no one seems to know how to permanently fix. And everything that faces forward has been sandblasted and rock-chipped. The car is worth nothing at this point and fixing it up properly would probably require 3 grand of work - but I've had my money's worth and then some. If this car were to be dropped in the shredder tomorrow, my depreciation plus repairs would be 7 cents per km and fuel is around 6 cents per km ... cheapest car to keep going that I've ever owned.
I think I've done quite alright for none of these vehicles being Sunny S approved. The next one won't be, either. Honda doesn't build anything that I like. Has to be a small car, partly because the van eats up most of the driveway and partly because I like small cars. Current contenders are: the new generation smart with a proper manual transmission (reason: this is likely the only way my current vehicle is worth any more than zero as a trade in - and the new one is far nicer than the one I have), Fiat 500 manual, new generation Chevrolet Spark manual (if only because it's cheaper than the other two - and I've had the previous-generation Spark as a rental and I'm okay with them). I've done no test driving yet; that may yet knock some of them off the list. I won't rule out a Fiesta 1.0 Ecoboost, either. I've had Fiestas as rental cars and I'm totally okay with those, too.
Bottom line is that on high mileage vehicles used similarly to how I drive them, provided the scheduled maintenance has been done, the engine and transmission are likely the least of your worries, but wheel bearings, suspension ball joints and tie-rod ends and bushings, and shocks take a beating and these aren't scheduled maintenance items; the only maintenance is by replacing them when they are worn out. Oh, and check forward-facing painted surfaces. With the Jetta, I put 3M paint protection film on the front of the hood and fenders, and it did a good job there, but the grille and headlights and windshield still end up being sandblasted.