 The R1e would go on to be exhibited at Geneva in early 2004 before Subaru announced the R1 micro would enter regular production for 2005 as a conventionally-powered gasoline vehicle.In 2005, FHI and TEPCO announced a joint project to develop ten prototype vehicles based on the R1e concept.Under the agreement, FHI was responsible for vehicle production and monitoring performance under daily use to optimize cost, battery capacity, and vehicle weight.