There were no diesel coupes for the european market, the were a US/Canada only product. Many updated the bumpers on euro 123's for that high end look. Same goes for the square headlight before 1983. Only the 230 and 280ce's plus 280e's had them. The rest were the round style.
This is the euro 1 piece, it has the rubber endcaps:
This is the euro 3 piece. Note there are no endcaps, instead it rounds off smooth:
