I wouldn't worry about miles. It's more about how well you do with maintenance imo. I have a work truck at the farm that's averaging 16k a year from weekend driving and a minivan for the city that has 240k on it, the hardest part about getting that far on the minivan was the regular maintenance. I'm definitely not easy on my cars( I think they both have half an inch of dust/mud on them) The outside is rusted through but mechanically they're fine, the van hasn't ever failed to start on the first try and it hasn't been stored inside at all.