In the pack, there are 2 Unmarked cars;
BMW 3 Series F31 (BK67 EYH)
BMW 5 Series G31 (BL68 MNA)
They both have the same setups, which is 4x grill ions which all flash blue, and then 2 ion duo spitfires in the back window for blues and rear reds, and also has an RSG Command Messageboard, and of course the usual full boot kit and dashboard with equipment.
Might release a few more unmarked traffic cars with the same setup, not sure.
F31 base - Bleep
G31 base - Walshey
Ions - CEO
RSG Commander - Andrews
Boot equipment - Pease and MegaMac
MCS-T17, FlexiStalk, SRG3900 - Bradstr