Sinclair Research to be a hypothetical portable version of the QL similar to "Pandora". In November 2010 Sinclair told "The Guardian" newspaper that he was working on a new prototype electric vehicle, called the X-1, to be launched within a year. "Technology has moved on quite a bit, there are new batteries available and I just rethought the thing. The C5 was OK, but I think we can do a better job now." The two-wheel X-1 was to have been available on July 2011 at the price of £595, but failed to reach production. Sinclair Research Sinclair Research Ltd is a British
Sinclair C5 expensively) on the aerodynamics rather than the cycle technology around which the C1 was based. The weight of the vehicle increased to over , far more than Sinclair's desired specification. By March 1983, Sinclair and Wood Rogers had decided to stop the C1 programme. Wood Rogers comments that Ogle were convinced that the C1 would be a flop, telling Sinclair that it would not be fast enough, that its drivers would get wet when it rained and that the battery was not good enough. To meet the steadily escalating development costs of the vehicle, Sinclair decided to raise capital by