literally everything about the maintenance is more expensive. I still shudder at what we paid for maintenance wise on my wifes Audi A4. We literally put 21k miles on our Model 3 last year. The only two things we've had to do was replace a tire because we got a flat that wasn't repairable. And windshield wiper fluid.The luxury car class has never appealed to me, so much fluff and so much that can break over time, just too much shit in them.
give me a model 3/Y over any BMW/Audi/Mercedes. Anything other than an EV, you might as well be literally burning money.