I almost want my next car to have a physical key, but a digital one. Back after mechanical keys but before wireless entry/start, there was a short period where

I almost want my next car to have a physical key, but a digital one. Back after mechanical keys but before wireless entry/start, there was a short period where you had to plug the entire keyfob into the dash to start the car... I want that back. Mechanical keys have the "photograph" problem (i.e. a single photograph can be used to reproduce them). Wireless start has the wireless hacking problem (i.e. if you broadcast, that can be intercepted/manipulated/etc). Digital keys have neither of these, and can utilise real challenge/response protocols since the keyfob can be powered by the car while authenticating. I will say I don't know if wireless entry will ever be secure. Too many technical problems to overcome, soon we'll be reproducing the military's channel hopping.