Gas prices in the Netherlands are high as well, but besides the prices of gas or diesel, I would sell both of my convertibles before selling my diesel.
I like the way a MB diesel runs and brings you around the world. MB diesels are great!
I used to drive a 1985 190D (600.000km when I sold it).
I am currently driving a 1993 C250D (371.000km and gaining 1.500km per week).
with a minor 600+k