The research received no additional, nonetheless, as Sinclair’s development of the primary “slimline” pocket calculator – the Sinclair Executive and its successors – took priority. It was not until late 1979 that Sinclair returned to electric vehicle improvement. Around Christmas that 12 months, he approached Tony Wood Rogers, an ex-Radionics employee, to perform consultancy work on “a preliminary investigation into a personal electric automobile”. The transient was to evaluate the options for producing a one-person vehicle which would be a substitute for a moped and would have a most speed of 30 miles per hour (48 km/h). Though Wooden Rogers