Talk:Research & Development/Mercedes-AMG C 63 Coupe Touring Car 2014/@comment-220.227.121.137-20170810080600

I have completed all 49 tests and the final test 50 is pending. But now the keys are over but not able to generate new once. It says:

R&D Tests require Proto Keys! Next Key delivery in 0H00M00S.

Please help.