* Tires
* In-cabin air filter
* Windshield wiper blades
* Windshield washer fluid
* Brake fluid. It's hypergolic, after all
* Suspension realignment
* Suspension bushings
* Tie rod ends
* 12V AGM battery for non-powertrain systems
* Brake pads, though regenerative braking heavily reduces wear
* Rainwater drainage channels need to be cleared
* Air conditioner compressor
* Struts
* Wheel bearings
* Battery pack coolant. Eventually it will need replacement
* Battery pack coolant pump. Eventually it will need replacement
* Powertrain battery back
Over long enough timelines...
* Any rubber seals. Door seals, window seals. Frunk/trunk seals. Rubber oxidizes and degrades to UV over time
* Speakers
* Brake caliper rebuild.
* Brake master cylinder rebuild.
* Parking brake related items (modern electric ones just push out a cam against the brake rotor)
* Window regulators
* HVAC blend door actuators
* Soft-close door/trunk actuators
* Power seat motors
* Power mirror motors
* Seat foam and upholstery
* Door hinges. Eventually they won't stay open at a set position anymore.
* Auto-dimming mirrors
* Any backlit display
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Even eventually an electric motor may need re-balancing or servicing, but the timelines are very long. Powertrain costs are vastly reduced to internal combustion engine cars, but over a long enough timeline, all the other mechanical stuff needs replacing. Thermal cycling, oxidation, UV exposure, compression and friction affects everything eventually.
Some things people vastly underestimate as well. OEM-grade (not cheap aftermarket junk) door and window seals are NOT cheap to replace, and eventually the OEM ones may be entirely unavailable outside of collector grade cars. Even on VERY normal cars like a Toyota Camry you can spend $1500+ replacing door and trunk seals with OEM replacements.