Other vehicle types have been presaged. In June 2009 announced plans for electric minivans, crossover SUVs and electric fleet vans for municipal governments.[185][186] In addition to the Model X crossover, a utility van and cabriolet are expected to be based on the second generation platform shared with the Model S.[187] Other than the third generation platform to be first used by the Model 3, the possibility of a truck is under discussion.[188] Future models may also reach a 400 miles (640 km) range because of a new patented battery system, pairing metal-air and lithium-ion batteries.