On the 28th of January 2018 GRT won the 24 Hours of Daytona in the GTD class, the opening race of the 2018 WeatherTech SportsCar Championship, with drivers Mirko Bortolotti, Rik Breukers, Rolf Ineichen and Franck Perera, a feat they repeated one year later by winning the 2019 24 Hours of Daytona. Less than two months later they won the 2019 12 Hours of Sebring, again in the GTD Class. From 2020 on the team decided to shift its focus on the ADAC GT Masters and the WeatherTech SportsCar Championship.