Imagesource: https://vintagecomputer.ca/

A Commodore workstation sounds like a tough claim at first. Apart from the PET/CBM machines, Commodore was never really successful in the business market. But in fact there were plans for it.

Initiated in 1983, the Commodore 900 was supposed to be a modern workstation with a UNIX-like operating system from Coherent. 

Unfortunately, the architecture based on the Zilog Z8000 never made it out of the labs, but the fact that some pre-production models survived, is all the more interesting. 

Santo Nucifora got his hands on one of these devices, and his article is well worth reading, not only for fans of chicken-lips.