The W126 280S would definately be a Euro, and, unless they sold 280SE/SEL's in the states too, those would be Euro too. Also anything without an "E" would have a carburetor.
Just out of curiosity, what are you trying to find out, or maybe I should ask, why?
"...rationality of thought imposes a limit on a person's concept of his relation to the cosmos." -Nash
04/71 280SE 195k
09 Jetta TDI