A local small college has one of those. I talked with the patrol woman driving it and she really like the T3. It was a replaceable battery pack, and one of the option is a battery with a 75 mile range. It seems like is has a place among other options for patrols. Here is a link the to the T3:
http://www.t3motion.com/index1.html
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"Bad facts make bad laws." FZ