electrics can last millions of miles and decades
Nice in theory. We have zero practical experience to back this up.
There is no question an EV is simpler, and that almost assuredly means lower maintenance. But that really only applies to the power train (engine/transmission for an ICE, battery/motor for the EV). The EV might even be 95% less maintenance on that part. The other systems are in both types of vehicles.
Take cooling for example - an ICE has a radiator, fluids, hoses, pumps, etc. But an i3 has "active battery management" with fluids, pumps, hoses, fans, probably even a small radiator (not sure on that point). I frankly don't see much difference in long term maintenance on that system. Same for brakes (though brake pads will be substantially lower wear on an EV with regen). You still need a master cylinder, slave cylinder, fluids, pumps, brake lines, calipers, etc. And suspension. And electrical/computers.
The i3 is every bit as complex, and maybe even more so, than a normal ICE, the complexity is just not in the engine/transmission which should lead to lower maintenance.
And if we want to talk about battery life (
Yes, the battery is an open question but battery costs actually go down over time. I expect there to be quite a cottage industry on BEV battery replacements/upgrades in the next decade.
), lets talk about replacing the battery pack at 100K miles. Lets be optimistic an think that we'll be able to do it for $6,000 (a 50% reduction from what it likely costs today for the battery pack). @12K/year, it takes 8.3 years to cover that distance. Dividing $6,000 by 8.33 makes $720/year in "maintenance" on that battery pack.
I really think EV's are the future, and yes, maintenance will go down compared to an ICE. But I'm not going to don the rose-colored glasses and ignore the facts.