Apple's Car Key feature is quietly expanding beyond a handful of BMW models, moving toward a future where the iPhone and Apple Watch replace the physical key across most major automakers. In this episode, Lucas and Luna dig into the technical backbone—Ultra Wideband, the Secure Element, and the Car Key Wallet API—and what it means for the car rental industry, the used car market, and the privacy of your driving data. They explore why Apple's approach differs from automakers' own apps, how the digital key standard is gaining traction, and what the next few years could hold for a connected car ecosystem that extends far beyond unlocking a door. If you've ever wondered whether your next car will even come with a physical key, or how Apple plans to make that transition secure, this conversation lays out the specifics. It's a practical look at a feature that's closer than most people think.