Indeed. The C28x line by the same company shares CHAR_BIT == 16 with C55. C28x is quite popular in power electronics applications. "Relevant" is in the eyes

Indeed. The C28x line by the same company shares CHAR_BIT == 16 with C55. C28x is quite popular in power electronics applications. "Relevant" is in the eyes of the beholder, and its all too easy to no-true-scotsman your way out of existing architectures. I claim that both of these architectures are relevant by virtue of suppliers continuing to make new chips that use them, and system builders continuing to select those chips in new products.