What should I consider before buying a used NX?
 

Edmunds.com can tell you specifics on what changed from year to year. The engine is the same for all models and years. 2.0 turbo.

AWD is only needed for snow IMO. The NX AWD is 100% FWD until the wheels slip then it directs power to the rear.

F-Sport is mostly cosmetic except for some with the adaptive suspension option. I believe the 2015-2017 F-Sport's did not have cooled seats.

That's all I know, I've only had the 2019 F-Sport for a couple days although I've been researching used 2015-2017 models.

You live in CA. Unless you go up into snowy mountains or wet "offroading" on muddy forest roads, what do you need AWD for? Even then, some winter tores take care of most moderate winter conditions. With AWD, you add complexity, weight, things to maintain and break down and - WORSE mpg. Ultimately, it's your call. One thing I do know about FWD - if you really step on it on wet road, tires spin. Too much torque. AWD does not have this but, then again, you will have less go down the road in AWD due to higher weight.
It's the same power train across the models. Difference is in gizmos availability. Basically, you paying for more electronics and shiny displays.
'ts your money. No one can make that decision for you.
ALWAYS take a vehicle out for at least an hour - 2 hr test drive. You never know, how torturous it may turn out, seating comfort wise, if you did not do that. Also, if you haul a lot of stuff, NX is not really a cargo champion. It's a cute toy with Lexus nameplate.

Here's a few things I wish I'd known before purchasing my used 2017 Lexus NX200T:

1. It does NOT have rain sensing wipers. That's unusual in this day and age since my 2013 Ford Escape has rain sensing wipers.
2. I bought the non-GPS version thinking I could mirror Waze or Google maps onto the screen. Nay, nay! The Lexus "connected GPS" through a phone app called Scout GPS Link is the only thing I could use and it is WORTHLESS! Spend the extra money for the GPS.
3. There is NO dedicated glasses holder above the rear view mirror. There is a tiny space above the radio where some people place their phone. I use this to store my sunglasses but the method I use to mount my phone (CD slot holder with charger) makes it difficult to get my glasses in/out.
4. The trunk storage is very limited. I have two gym bags (cycle shoes & gym clothes) and a "go bag" in the storage area. After that, I'm lucky to get a gallon of milk and a case of Coke in the cargo area.
5. The buttons for the memory seats are UNDER the armrest. I've had to open the door to see them in order to select the correct button. Poor choice of placement.
6. No sub-woofer and the stock speakers and stereo are sub-par. I replaced the door & dash speakers and improved the sound slightly but be prepared to be underwhelmed.
7. Android Auto and Apple Car Play are NOT available on the 2015-2017 models and is available only on certain 2018 and newer models.

On a positive note, the ride is phenomenal! The pick up and gas mileage are good. I average 23.5 in the city and got 29 mph on a recent three state trip.

And to answer your previous question, the Turbo is standard.

Also note that the F Sport version does NOT have ventilated seats. Where I live ventilated seats are very nice to have.

Good luck!

Keep the tips coming, please. I'm also thinking about getting a 2015/2016 NX, but prefer the hybrid, so 300h.

Mine definitely does not have rain sensing wipers. I guess the version you have must have been a different package level.

Regarding the "secret" compartment in the console with the mirror - I do have that but I use it to store cables. I guess I could put my sunglasses there. However, I miss the "push-button" compartment above the rear view mirror that a lot of cars have that's dedicated to storing sunglasses.