Season 12

Season 12 of the GPGSL started on 23 June 2018, and finished on 26 May 2019. As per Season 11, fourteen events were featured on the calendar. Marcus de Bruyker and Tyrant Motorsports won their first drivers' and constructors' championships respectively.

Teams & Drivers
Christel VXR returned to the series in Season 12, its first appearance since Season 8. M.M. MotorSports also joined the championship for the first time. Former team TN Racing find themselves on the cusp of returning; and are rumoured to be preparing in readiness for the next team that may pull out of the series.