Spent a frustrating amount of time, trying to ad my own sponsors over the default ACC cills.
I saved my design as a 'sponsors' file, instead of a 'decals' file and all was good
Added GReddy to the rear wing.
replaced the normal ACC cill sponsors with white cills and GReddy stripes.
Added Castrol sponsor to the cills too.
Enjoy
Just noticed the 2No Greddy logos on the roof are the wrong way round - Fixed it.
Added a white front splitter with a Greddy central sponsor.
Added colour coded door mirrors.