It's a bit weird because electricity delivered to your home is generally more expensive than fossil fuels. What currently makes EVs cheaper to operate is that at the pump, you pay hefty taxes that go toward road maintenance and related purposes. For now, this taxation disparity incentivizes driving EVs. In the long haul, this will probably go away.

I'm surprised by the "more spacious" comment, however. In the same size class, EVs tend to be more cramped because of how much space is needed for batteries. Even for large cars, like the Cybertruck, the trade-offs are fairly evident. No spare tire, for example.