We'd only need a compromise here. The concept that failed, afaiu, was batteries you'd swap at the gas station on a trip, which you probably want to take no long

We'd only need a compromise here. The concept that failed, afaiu, was batteries you'd swap at the gas station on a trip, which you probably want to take no longer than refilling your good old ICE car took. That seems impractical for several reasons. But if you had a range extension pack that you could add/remove in 30 minutes before a longer trip, maybe that would be more realistic?