Not correct. GMH very rarely ever made their sports or special or otherwise variants a separate model, it just didn't happen. It says it in black and white in various GMH literature that such production option variants are meant to be and were seen as separate models. Here is an example from the HZ features manual, in this case the Sandman (XX7 and XU3) and the Kingswood (A9K) made it into regular production. The Statesman Calais didn't happen immediately and ended up as the Champagne edition later, simply an option pack like the SL/E.
Features manual B-1 crop.jpg
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