From Chicago Ridge Fire Facebook page 

CRFD would like to introduce our new Battalion 6 vehicle placed in service on New Year’s Eve. Our Battalion car can serve as a command post for fire incidents, but can also be seen accompanying crews on nearly every emergency we respond to. Keep an eye out for the newest addition to our fleet!
#chicagoareafire.com; #battalion; #ChicagoRidgeFD;

Chicago Ridge FD photo

thanks Martin