I went back to Tesla today and he looked through the history. It's had regular maintenance performed at Tesla and the person I was talking to knew the previous owner. It has the original door handles, battery, MCU and screen. The motor was replaced in April of 2016. The sunroof was fixed a couple of times and there are some water stains on the pillar. I put new tires on it today and that noise that I thought was possibly a bad tire turned out to be right. Also had Discount Tire replace the sensors on all 4 wheels and I still have the fault warning.
I'm thinking maybe it might be a good idea to upgrade the MCU since it's eventually going to go bad. I know a recall is coming but everyone is praising the upgrade with the exception of the backup camera at night. Tesla repaired the driver door handle and all handles are working fine so I'll wait on updating them.
I didn't want to mention price because people would probably swear that there has to be something wrong. With 19 months left on the warranty I don't think it's that big a risk. This car has been driven 150k and had very little done to it. I drive maybe 6k/year so this car should last me a long time if I want it to. It looks fantastic for it's age and miles! Battery still charges to 237 miles at 100%. I know I won't get that many miles but it's only 10.5% off of its rating when it was new. With the new tires and an upgraded MCU (with new screen) I'll still have less than $20k in the car. So you can see my risk is very low and I got the car I've wanted for a long time!!! I also like that it's the one with the bigger frunk. I feel like a little kid and it's fun to feel like this. I HAVE A MODEL S and it still looks great!
BTW, if the price wasn't right I would have waited til I could get at least a 2015 model S.