Session report covering brainstorming on C3 test method development, including discussion of tyre segmentation priorities (segments A and C), methodological approaches (open road convoy, drum, accelerated, and single wheel trailer methods), testing capacity and timelines, funding needs, SRTT abrasion range expansion for C1 testing based on Korean data, C2 test campaign status, and TAPP participation criteria. Action items include simulation expert engagement, family approach feasibility review, SRTT range bracketing in UN R186, and drum method equivalence evaluation by JASIC.