I have fond memories of my first computer, a ZX81 and then the Spectrum that followed it.
Sinclair does get a lot of unfair stick over the C5 but he was thinking in the right direction and with the technology available today such a design would be very viable as a commuter vehicle.
A typical British eccentric in many ways, but like many of that type he was a genius in his field and whatever you may read about PCs, Macs and BBC computers, it was Sinclair's affordable and innovative early models which were largely responsible for starting the computer boom in this country,