Actually her subaru is doing pretty good I thought. In fact it just turned ten years old this year. But it has it easy now she just retired last year and only subs once a week. It did alot better then the americans cars she used in the past. She never used a SUV, too tall, always had to lean down to the mailbox.
In my mothers case it isn't the rough roads that kill postal rigs, it is the 600 stops per day that kill the brakes and transmissions. Go 60 miles a day with the brakes getting a 10 second cool down between stops and that the auto tranny never gets into 3rd gear, it just shifts all day long. At my mom's office none of the rigs lasted more than 10 years at a time. But here it is dense rural (400-700 stops per day per route). The winters here are very mild, we only get 3 feet of snow all winter long.
I am sure your wifes situation is different, having 90% dirt roads(less stops per mile) would make the tranny and brakes last longer at the expense of the rest of the chassis. She probably has fewer stops per mile, just alot more miles. 6 years and 210k WOW. Here it is 10 years 120k and 6 sets of brakes and one auto tranny. And in the end you have a car that no one would buy , even though it is a "low milage" car.
Matthew you could be right about being a cheap copy. Looking closer I notice it has a belt, the one I saw was with a LONG bicycle chain. I last saw the set-up was when I was 12 or so(18 years ago) What about the pedals?