about 9,000 maxxpro vehicles were bought by the u.s. army between 2007 and 2011, and they plan to keep only about 3,000 of them. navistar is pitching the maxxpro mrap as a vehicle that can be upgraded into a mobile command post or power generator. with budget cuts, the plan would allow the army to get solutions they want from the existing fleet. the company is also planning to make it a maintenance vehicle and mortar carrier.