> Over the years, nearly everything on the vehicle has been replaced or repaired, and Campbell says the only original part is likely the body, and even that has had work done on it. To me this makes it less interesting. I would be amazed if the original parts (outside of what gets replaced for maintenance) lasted that long. But it’s hard to judge how durable the car is when everything has been replaced
1M km (Tm?) is less than 750k miles, for those more familiar with customary units. https://en.wikipedia.org/wiki/Irv_Gordon had a Volvo with over 3.25 million miles (5.2Tm), although it's also had 3 engine rebuilds.
And the conversion is actually fairly simple. 1M km is 600k miles, so you were in the ballpark.