Commenters distinguish the genuine E92 M3 GTS (138 units, never US-market) from tribute builds, calling out fakes while arguing the GTS's NA V8 is the main win over the later turbo-six F82 M4 GTS.
E92 M3 GTS: genuine vs tribute
BMW E9x M3 (E90/E92/E93, 2008-2013) · variant