I don't think they can be compared, at least objectively. They are just too different in their designs, construction and purpose to be fairly judged against each other.
I used to be a big car guy, but even then, cars were either a mode of transportation or mechanical art (I know that's a stretch, but I was a BIG car guy)
Boats on the other hand can be used not only for transportation, but also as a homestead, in additional to the artistic aspect of their design, detail and construction (I have become a BIG boat guy
In that way, one would more accurately be able to compare a boat to a motor
home. In which case the boat would win every time
It seems the broker was just trying to be clever in making the comparison between the Dana and the Camaro.