Re: Hard to take seriously
the C5 made no sense in any country where it had to share roads with other vehicles
to be honest it made little sense anyway - the battery charge was insignificant, while the seating position was such that pedaling was uncomfortable, inefficient and very very slow - and gave you a crick in the back.
If the design had been any use, the modern generation of electric cycles would have copied it. As they've not, then the C5 design was clearly a botched dead end.