It began on May 1 at Silverstone, before finishing on October 17 at Magny-Cours after twelve races held at six meetings.
Rhesus Racing driver and single-seater convert Paul Meijer finished the season as the main GT4 champion – as well as securing the GT4 teams title, with team-mates Giuseppe De Pasquale and Raffaele Sangiulio – having finished each of the twelve races to be held on the podium.
Meijer won a season-high five races during the season, including winning both races at the season-opening meeting at Silverstone, en route to a championship-winning margin of 27 points over RS Williams' Michael Mallock.
Mallock finished a comfortable second after Matt Nicoll-Jones elected not to contest the final round of the season at Magny-Cours; Mallock won three races, while Nicoll-Jones won two – a double at the Nürburgring, after guest driver Ollie Hancock was ineligible to score points for a victory – for IMS Motorsport.
Gianni Giudici won seven races to clinch the SuperSport class, ahead of four-time winner Anasthasios Ladas, who shared two of his wins with Kevin Veltman.