No, there really doesn't need to be a key card backup. For my other two vehicles (Toyota Highlander and Ram 2500), the fob has a built-in backup if the battery dies, and neither vehicle ships with a key card backup. And that's been 100% fine with me, and has never caused me a problem. It seems that only with a new generation of vehicles has someone decided that you need a wallet card. Personally, I dread trying to explain to a valet how to use a key card, and hope that when they try to retrieve the car back later that they can remember where you're supposed to wave the card to get the car to start. I'd much much much prefer to just hand them the fob, which everyone knows how to use. Same deal if a friend wants to "borrow my keys" to unblock their car, or make a run to the store, or whatever. I guess I can see some tiny appeal to minimalism by eliminating one small thing from from your pocket, but the convenience of a fob outweighs the gain of pocket space in my opinion. Maybe if I was a woman, where they've decided that clothes shall not have pockets, I'd feel differently. But I doubt it, because then you just need to carry a purse for things like your cell phone, and a fob fits just fine. I recognize that I'm probably an old fart who isn't keeping up with the times, but I don't understand the obsession with PAAK. It strikes me as a cool but minor feature. None of which excuses Lucid from promising and then failing to deliver, of course.