So, Austin apparently has four of these bad boys. They use them for "special events," like SXSW, ACL, Halloween, stuff like that - where there's way too many people on the streets for them to get a full-sized vehicle through.
Best part is that they didn't pay anything for them - each of them was donated. This one was donated by the group that runs the marathon in town - seems like EMS has helped them out more than a few times. Cool or what?