Well, a lot of users focus on the drivability, which is one very MAJOR selling point - does it Get You From Point A to Point B?
Some look at efficiency, some look at performance - others, well...just wade along to get thru the traffic applying the best methods they know how to - meaning a trade from performance and handling to the efficiency and ease of use.
I drive a stick - so my efforts are more of matching the drivers around you for speed and check up on distance between you and those other drivers.
You always have one or two chasing tail - but you'll hold your own when it comes to keeping up with the pack.
It's the interior that may make you want to reconsider if the Used got trashed or the original owner got tired of having the shop fix trim or if you find broken hardware, then you may want to skip the rest of the buyer incentive meeting and just go to another lot and look for something more substantial.
Put the thing in "test mode" by (if they'll let you)
This is a transparent way to see how the former owner took care of the vehicle or not, this diagnostic mode can help you in making a final decision in both how well the gauges track the Displayed data (analog vs Digital realm) as well as various other features...
I'll share more in the next post to help you...