I like the idea that scottryana has about the passenger side mount as well. I would be in for a drivers and passengers side mount. Because of how small these extinguishers are I wouldn't mind having two available for fire suppression. I can't tell you how many carbecue's I have seen on the side of the road in Arizona that have led to the Interstate being closed because the car or RV ignites the dry weeds and grass then spreads into the surrounding desert. Usually there is one small 2.5lb extinguisher sitting on the side of the road empty in the aftermath. Possibly having two extinguishers handy may have prevented this.
