 The non-OEM conversion, carried out by Micro-Vett, entailed fitting a 22 kWh lithium-ion battery pack and an electric motor but retained the 5-speed transmission; it was marketed by the NICE (No Internal Combustion Engine) Car Company and was on sale for .The NICE/Micro-Vett 500 claimed a range of and a top speed of .A concept electric 500 by Fiat/Chrysler was shown as the 500 Elettra or 500 BEV Concept at the 2010 Detroit Auto Show in January, positioned as a competitor to the Mini E, but details of the electric vehicle were not initially available.