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Definitely, I saw this from working on hybrids when I was a mechanic. The transmissions were simpler, the engine rarely needed any work since they ran less than a gas only car. They barely needed any brake work since the electric motor does most of the stopping.

A full electric pretty much eliminates all the work besides replacing tires and replacing the brakes maybe once in the car's lifetime.

Some customers with older evs will need new batteries but the price of a battery is so expensive that dealers won't have a lot of room for markup and it only takes a few hours to replace one.

>These revenue lines are very high-margin

Any source for that? Auto repair is extremely competitive, and laws forbid manufacturers from restricting where repairs can be done. So how is it high margin?

> revenues on maintenance, servicing, and spares

The OEM doesn't make money on replacing parts or service. The Tier-1 / aftermarket suppliers and the mechanics do.

Exactly. But the Tesla saga has taught me that the technology sector knows very little about the auto industry.