GT Winter Series Portimao: Wiebelhaus stars for Haupt with double victory

Wiebelhaus, who until this event had only competed in Formula 4, was headed just once all weekend. Defeat to Jay Mo Härtling’s Mercedes in the Saturday sprint was the only glitch in his Algarve outing, but victory in both the sprint and the enduro on Sunday still represented a strong GT Winter Series debut for both Wiebelhaus and the Haupt Racing Team.Race 1Härtling (SR Motorsport) and …Keep reading