Marc VDS Racing skin from the 2014 European Le Mans Series.
Drop the Marc VDS Racing 2014 ELMS folder into Steam\SteamApps\common\assettocorsa\content\cars\bmw_z4_gt3\skins
Drop the Marc VDS Racing 2014 ELMS folder into Steam\SteamApps\common\assettocorsa\content\cars\bmw_z4_gt3\skins