I think the study methodology is totally flawed, and therefore the results are erroneous. as well. If Popular Mechanics sampled 12 million vehicles, then the sample would statistically contain more of the best selling vehicles. If PM then counted how many of each model have over 200K miles, the best sellers have the best chance to have the highest percentage of the 12 million sample. It's similar to auto industry statistics that used to show that vehicle most often stolen was the Honda Accord. Of course it was because there are so many sold and on the road to be stolen. A better study would be to take a sample of 12 million vehicles, count the number of each model, and divide it by the number of that model sold during the study years.
I have owned GM and Toyota, and you could never convince me that GM or Ford products have a better chance than Toyotas to achieve 200k miles. Sad to say, but Japanese cars are more reliable and have a much better chance to reach 200K. Love my 2004 4R!