Second City Cop has a shot of what looks like an MRAP belonging to Chicago police.
Second City Cop is a blog targeting a mostly police audience. So you might find the reader comments below the photo especially interesting.
Here's a set of Chicago MRAP procurement papers from July 2011. Same vehicle? Or have more been added? Update: Upon closer reading, the procurement papers appear to be for a $99,900 accessory ramp that Chicago PD had installed on an existing MRAP.
Pricey stuff, eh?