Woohoo. Another DTM WIP from you.
And it seems you're taking on quite a challenge. Only experience I got with Fujimi is their more recent (first release) Ferrari F430. And that one is pretty decent.
But I've already read in other threads that their BMW and Mercedes DTM kits are pretty crap...
But judging by the work you've already done on the ProMarkt Merc, I have no doubts that you'll pull this one off very nicely.
Too bad about the weather over there. Just to rub a bit salt into that wound, we have nothing but great weather here in the Netherlands (for a change)...
Good luck with this one. I'll be following your progress closely !