From Twitter Motorsports

The ADAC GT Masters is a grand tourer-based auto racing series founded by the international Stéphane Ratel Organisation (SRO) and supported by the German ADAC automotive club.

[edit] ADAC GT Masters on Twitter

• @gtmasters - Probably official (Unverified) (German language)
• @sromg - SRO Motorsports Group, sanctioning body, Probably official (Unverified)

FIA GT Championship and Other FIA/SRO-sanctioned GT Series

Super GT  |  British GT  |  European GT3  |  European GT4  |  GT Masters  |  FFSA GT  |  Belgian GT  |  Brazil GT3  |  Dutch GT4