Hi mate,
Im no mechanic so take my reply ith a pinch of salt. I honestly think a VR6 with 180k that has been oil and filter changed ever 3k and properly serviced and looked after since day one. will be waaaaay better than a 50k VR6 that has never has the oil changed once and treat like crap.
So, I guess what I mean is the miles is not irreverent but its more how well its been treated.
If all cars were serviced regularly and they all had the same history then defiantly a 50k car should be way better. But thats never the case.
This reply doesn't help you as there is no way to know the history. For me I waited for a dealer serviced highline that I could trace back to day one. Two owners etc etc.
I did see a few on Ebay with 55k on the clock but when you vet them on the net they have 80k on them. hmmmmm, where did those 30k miles go then?
But then and even now with the right VR6 ive just had the window cable snap and I hope ive finally got to the bottom of why it keeps konking out. Its a bloody mine field mate.