The electronic ignition cars dont have a receptacle for the metal key blade. They only have a big socket to accept the nub on the fob which is sort of shaped like a big key (fisher price shape)

__________________
2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)