My golden rule which normally works out well - the car looks great inside and out (a testament that the previous owner took good care of it and most likely didn't hotdog the heck out of it, at least not daily)
Look at the tires (unless they are new) to see the wear on it. If they are balding heavily on certain sides, be cautious it could've been hot-dogged daily.
Check the engine bay. If it looks nice and crisp, that's a good sign. A dirty or stained engine bay is like dating a girl with yellow teeth - bad hygiene and just not my cup of tea.
If you can chat with the previous owner, that's a huge plus, you get insight to how he took care of it. Either way, go with your gut, if anything throws you a red flag move on...there are thousands of these cars out there for you. I went to a dealer to buy mine, took 10 minutes looking at it, a 5 minute test drive, and I left the lot with it within the hour. No regrets. Midway through the paperwork an older gentleman came in asking to check it out, had to apologize I already snagged it ; )