
With the official pre-season test at Daytona, the IMSA SportsCar Championship closed out 2025 and effectively opened the 2026 campaign. During running at Daytona International Speedway, the four LMDh manufacturers – Porsche, BMW, Cadillac and Acura – presented updates to their GTP machinery.
Cadillac’s changes were the most striking: the V-Series.R now features a completely redesigned rear wing element, which is mounted significantly lower. A new splitter without diveplanes has also been introduced, along with a new Brembo braking system.