IMHO, Morgan suffers from a severe case of "Not invented Here" and "Do it cheaper".
Evidence: my Aero Chassis Plus 8. Now with SSL suspension at the 4 corners it is a delight. The Plus 6 can be made to be, perhaps, even better...and safer.
The Plus 4 is not bad, but could be improved.
The Aero Plus 8 suspension was, I'm reliably informed, set up to make it feel like a Morgan.....a traditional one with cart springs.
That they had one of the most sophisticated suspension designs of the day and then deliberately degraded, using ill suited and low quality shocks and springs it so it didn't perform to its capabilities is beyond belief.
