"Bob Hobden" wrote in message
...

[snip]

Much more efficient to burn the hydrogen in a reciprocating (or rotary)
engine than to convert it through a fuel cell to run an electric motor,
though electrically propelled vehicles do have the potential to convert
the slowing down process back into usable power.

Totally wrong, and ever heard of regenerative braking,

Evidently he had, as evinced in the paragraph you described as "totally
wrong".

[snip]

Franz