When you do a driver swap and use custom skins (same skin or different one, file name doesn't seem to matter), the vehicle will be teleported to the garage once the new driver gains control.
In a practise session the new driver can then continue driving, in a race it would probably result in a DNF (not tested)
Build 660
In a practise session the new driver can then continue driving, in a race it would probably result in a DNF (not tested)
Build 660