You have 3 options and 1 choice to make.
Let's say the sellers are all asking the same price.
3 identical used 2020 Honda Civics
Wildly different wear
All 3 located in the same city, does climate matter?
1) Dude buys the car, drives it home, parks it idling in the driveway while he runs into the restroom and forgets about it. Somehow it idles for 5 years straight, nonstop outside before it gets posted for sale. Odometer reads 10 miles.
2) Garage kept short commuter car. Husband and wife share 7 days a week, 365 days a year for 5 years. It drives one way to work 2.75 miles through traffic similar to downtown NYC, into a parking garage, every day. The owners don't run the car in the garage cause its stinky so it starts and they leave. Odometer reads 10,000 miles.
3) Garage kept long haul commuter car. Transports the driver but sometimes 3 other adults. 99% cruise control highway miles. Odometer reads 250,000 miles.
All 3 need tires, you guess why.
All 3 had recommended 15k mile oil changes.
Long haul had timing belt changed once and trans serviced 3 times.
No other maintenance was done
I would love to discuss. I think this is a good question but I don't mind editing this as folks bring up better scenarios. I originally thought the short commuter car would take 3 kids to school/sports each day, but 5 years of that might be too much.

Let's say the sellers are all asking the same price.
3 identical used 2020 Honda Civics
Wildly different wear
All 3 located in the same city, does climate matter?
1) Dude buys the car, drives it home, parks it idling in the driveway while he runs into the restroom and forgets about it. Somehow it idles for 5 years straight, nonstop outside before it gets posted for sale. Odometer reads 10 miles.
2) Garage kept short commuter car. Husband and wife share 7 days a week, 365 days a year for 5 years. It drives one way to work 2.75 miles through traffic similar to downtown NYC, into a parking garage, every day. The owners don't run the car in the garage cause its stinky so it starts and they leave. Odometer reads 10,000 miles.
3) Garage kept long haul commuter car. Transports the driver but sometimes 3 other adults. 99% cruise control highway miles. Odometer reads 250,000 miles.
All 3 need tires, you guess why.
All 3 had recommended 15k mile oil changes.
Long haul had timing belt changed once and trans serviced 3 times.
No other maintenance was done
I would love to discuss. I think this is a good question but I don't mind editing this as folks bring up better scenarios. I originally thought the short commuter car would take 3 kids to school/sports each day, but 5 years of that might be too much.

If #2 took place in downtown Phoenix, a hot dry climate, does that help or hurt? Helps engine wear...maybe hurts trim/ rubber parts??