Compare this car to the Toyota RAV4 PHEV which in some ways is simpler than a gas powered RAV4 (no alternator, no transmission) but maintains the same ease of maintainability and cheap parts availability as the base RAV4 (makes sense, they sold >4M of them).

PHEVs are complicated tech so I figured I would choose one with a proven design (Prius -> Prius Prime -> RAV4 Prime).