I noticed that there were sedan Hammers at all.

I like it in blue... less clicheed.
These were all black in their days, I came across an AMG dealership in the early 80s twice a day, and all cars in the yard were black or white.
With (non-)color-coded everything.

https://www.mercedes-fans.de/magazin/auto-der-woche/1991er-amg-6-0-widebody-coupe-blauer-dampfhammer.19768

Madly expensive today, already wildly costly when new.

https://thecultivatedcollector.com/stock/1990-mercedes-benz-amg-hammer-coupe-6.0/84