Absolutely. (True for all kinds of cars.)
Changing BRAKE FLUID? Are you serious?i hope you mean zero cost, not zero maintenance ?
Most maintenance on modern cars is just inspection ( labour cost)..
you might avoid the cost ( free service deals, etc) , but you cannot avoid the maintenance.
.If you read a typical Service plan its 90% inspection...
...check tyres, brakes, air filters (pollen), windshield wipers, seat belts, fluid levels, (change brake fluid ?) , accessory drive belt tension ? , rotate tyres. wheel alignment, etc etc .
As for the rest, I replaced wipers once and tires once. Took a look at the brake pads while I was doing that. They were fine. (Regen braking means fewer brake pads.) Nothing else. No "seat belt" maintenance. No "accessory drive belt tension" because there's no accessory belt. No air filters. No wheel alignment. No fluids. No wheel alignment. Most "car maintenance" is due to auto dealers who want to make more money,
Oh, I checked it every time I got in the car. It's right there on the dash.Most of those are still needed on any car, but of course you would not need the oil and filter change !
However, i am surprised that EV battery condition would not be checked occasionally ?
so if you skipped most of that for 7 years , that is not smart.