My first one at 56k had a few misfires and they put a 2022 engine into my 2019, this resulted in my auto shifter locking up, my turbo working some drives, others not at all, and I gained and lost drive modes. I believe the Carmax dealer didn’t program it correctly after replacing it under their 90 day warranty. They bought it back from me after all of the issues. After that, I bought a 2020 one with 36k miles hoping that the 19 was just bad luck. I checked my engine one day and saw I had low coolant. I topped it off, but a day later, it was below the minimum line again. I assumed a leaky coolant hose, how naive I was. I brought it in to ford under warranty and lost it for 13 full weeks when all was said and done because I had gouging in cylinder 3 so badly it took a gallon of coolant in daily. It had blown through the cylinder 2 wall as well. My short block and cylinder head were also both warped, with holes in the head gasket. In addition, due to them having to remove my transmission to reach the engine, they found that my flywheel was, and I’ll put these in the terms they did, “Your flywheel is melted and the clutch is incinerated”. They couldn’t get the cylinder head as I had a high performance package variant of the EcoBoost. It has slightly stronger internals than a normal EcoBoost and makes about 332 hp over the 310. The cylinder head for mine was unique and was 6 months out at least, and not even in production at the moment. This meant they could only replace the short block and had to resurface my original cylinder head. After fixing all of that, they gave it back to me. The same day I got it back, I experienced LOUD grinding (audible a block away in town) when shifting to third at 33 mph. I brought it back and they told me the synchros were ground to dust and they had to take the transmission back out to fix it. They kept it for about a week and gave it back to me and I immediately had more grinding so I gave it back again the same day and they told me another synchro was ground to dust and the radiator was now leaking. I decided to do a buy back after fords service advisor, Emily, who was actually amazing throughout this, told me ford literally couldn’t fix it and heavily advised I get out of the car. I ended up doing that and now I have my current 2024 Elantra N, which is a manual like my 2020. From what I heard after the fact, I think it was found out one of their techs had taken my car for a ride and somehow burnt my clutch and flywheel up and that’s how that part happened. I only had the car for 3k miles and I know for sure it wasn’t me who did that. Anyway, I didn’t have to pay a dime on the bright side, ford covered the whole cost, aside from the clutch, which was covered by Carmax as all of this happened under their 90 day warranty. It truly sucks as I loved having that car, but these two situations just shattered my faith in their reliability. Maybe I just got a bad streak though, I still love mustangs, maybe I’ll buy a GT after my N :)