You Mean Like The Factory 1971 Charger Superbee 440 Magnum Combo
You're comparing an availability of an engine/model combo that already existed (R/T and SE) with the availability of a combination of a bumper/grille combo that never did - not a good analogy.
Plus, there is literature that shows the 440 Super Bee was available, so it stands to reason that a few snuck out.
