Not sure, but likely Apple CarKey support (like our BMW iX has). It will require new hardware as it uses UWB. Add it to the list of expectations for the Taycan facelift.
Looks great, if the Taycan doesn’t get some of this in the MY2024 facelift it will start to look a bit dated. I have my name down for a Macan EV and a facelift Taycan, not sure which way to go…