Costa Toparis completes Rodin Carlin’s GB3 Line-up Costa Toparis completes Rodin Carlin’s GB3 Line-up Bas Kaligis / Thursday, February 16, 2023 0 406 Article rating: 3.0 Australian driver Costa Toparis will complete Rodin Carlin’s GB3 line-up for the 2023 season. The 15-year-old will make his full-season European racing debut as he takes on the eight round championship which kicks off in April. Toparis lines-up alongside already confirmed teammates Callum Voisin and John Bennett. Read more