.
Thanks for the clarification Bryon, as a driver of one of
two identically painted cars I am often accused of the
shenanigans of my teammate

so I understand fully.
I didn't read all of the posts, but the ones I read weren't
blaming you or your builder for cheating, rather were concerned
that a crossover classed car (which yours is evidently not)
claimed a track record without being fully vetted in the class.
Your explanation that this was not an HP/ITA crossover certainly
dispels this concern.
I think that one of the larger questions is whether lap records
earned in an enduro should be treated equivalently with those
earned in a sprint race. The facts are, that in the enduro, the
driver to be attributed is not certain, and the controls on
weight during the race are not enforceable.
In a sprint race the driver, and car with remaining fuel, is
weighed. If it meets minimum at post race impound, it certainly
was over the minimum at every time during the race, and hence
during the record breaking lap.
In an enduro, one of the drivers could weigh substantially less
than the other(s), causing the car to go underweight, and/or
the car could lose enough fuel during the race to go under
weight. Either/both of these situations could be "corrected"
during the enduro, so that the post race impound weight appears
adequate.
Therefore the controls on "during race" weight are not the same
for enduros as they are for sprint races, and no one could
be absolutely sure that the record breaking lap was made with
a car that met the class minimum weight.
So...for the reasons of driver attribution, and certainty of
weight compliance, lap records won earned during enduros should
not be given the same importance as those earned during sprints.
.