Seems like few people rebuild gas engines in their cars when they become "a few decades old", apart from a _very_ small minority that like retro car stuff. If t

Seems like few people rebuild gas engines in their cars when they become "a few decades old", apart from a _very_ small minority that like retro car stuff. If the battery pack was the only thing needing replacement in EVs and they are possible or even easy to remove/replace, it sounds like it could be done quite easily and still give you a useful vehicle.