Pre-emptive caveat: I am fully in favor of electric cars, and will happily switch if I can ever afford to do so.

Yes, most of the parts that are going to wear out on IC cars are motor and transmission parts, and those are complicated and time consuming to fix. In many cases it's not practical for the end-user to do so anymore. Electric cars OTOH are more likely to have electronics issues, and the batteries are ridiculously expensive to replace when the capacity is reduced below a useful level.So you're still going to end up with similar maintenance costs over the lifetime of the vehicle, but they're more likely to be concentrated at one or two irregular points in time rather than small bits of preventive maintenance done at regular intervals.