Same career but with a new BMW M6 GT3.
BMW skins are now working, #42 is an official one and #15 is the closest to the second car official skin I've found.
All events and opponents.ini have been updated.
Just delete the older version of the M6 and install this one.
Overwrite you career files with this new version if you already got the older version.
Everything should now work properly
Don't forget to read the README file.
Sorry for the mistake about the C7r, it is not the GT3 version but the GTE one. The 2017 ADAC skin pack only got skins for this car. I did try to find the GT3 version but none is available. I don't think that it makes a big difference as all cars are making similar times.
Have fun!