As both the current and old-spec Porsche reach new weight heights, the BoP remains secondary in the often-chaotic IMSA races on the Detroit street course. New weight increases for both the 2026- and the 2025-spec Porsche 963 headline the Balance of Performance for the 2026 Chevrolet Detroit Sports Car Classic. After the small break at Laguna Seca raceway, the factory Porsche 963s are back ...Keep reading