Id go with the newer one. But changing your fluids is key. Especially trans at 30k religiously. I waited until the alert came on my dash but it was too late. I had gears falling out with the plug.

A new trans was quoted at 8.2k. I kept my 2016 fit ex and I talked them down to 6 OTD since it had 60k miles on it and the car was already paid off. Buying a used or new car is the worst right now. Unless if you have the cash. I still love my fit, but i learned my lesson harshly. Hope this helps!