PORSCHE GT3 CUP CHALLENGE USA Efrin Castro Date of birth: Monday, October 27, 1975 Country: USA Class Gallery POINTS STANDINGS SEASON 20202019201820172016 Newstest WeatherTech Championship Season Finds Familiar Faces in New Places... IMSA Notebook: Wright Motorsports Entering Pilot Challenge as Well... Ares Design Resto-Mods a Classic 911 Turbo