This from Drew Gresik:

Here’s a shot of new Ambulance Co. 23 assigned shop number C165. It’s a 2013/14 Ford E-350E-450/Wheeled Coach Type III. Other companies soon to receive their new rigs are Ambulances 5, 9, 15, 22, 33,and 36.
Wheeled Coach ambulance for Chicago

Ambulance 23 is a 2013 Ford E450/2014 Wheeled Coach Type III with shop #C165. Drew Gresik photo