Early 90's 4-Runners are popular in my neck of the woods, and there are more than a couple running around with seriously high odo readings and little major mechanical work. When I had the electronics shop we had a 4-Runner come in for a new radio that had a little over 600,000kms on the clock. (about 375,000 miles)
The clutch had been replaced a couple times and the AC was not working, but otherwise the thing was in surprisingly good shape. I imagine other components had been repaired/replaced, but the engine ran great and it had held up very well.
Can you imagine if MB and Toyota merged and MB designed drivelines and body strutures and Toyota did electronics? It would be the downfall of the automotive business, as we'd only need to buy a new car every 30 years.