sentences:  A two-year demonstration program with 25 Chrysler Town & Country E85 flexible-fuel plug-in minivans began in April 2012.The first units were delivered in Auburn Hills, Michigan and Charlotte, North Carolina.The demonstration program was halted in September 2012, and Chrysler recalled the 23 units deployed at the time due to damage sustained by three separate Dodge Ram 1500 Plug-in Hybrids participating in a parallel program when their battery packs overheated.