Dominus GT was added to Rocket League right near the beginning of the game in 2016/09/08 with the first crate update. Dominus GT is the one of the best looking cars out there and on of the most popular cars. The Dominus GT is an upgraded version to the original dominus car as many players loved the original Dominus! Is Dominus GT Paintable? No. Is Dominus GT Certifiable? Yes.