Photo: Brandon Badraoui/IMSA IMSA and SRO have canceled its planned joint Balance of Performance test for GT3 machinery at Daytona International Speedway, citing “substantial unplanned costs” after “considerable dialogue” with manufacturers. Originally scheduled for Dec. 12-13, on the back of a two-day IMSA-sanctioned test for all WeatherTech SportsCar Championship teams, the BoP test was set to run to the same protocol as SRO Motorsports Group’s annual BoP test at Paul Ricard, with dedicated test drivers sampling each GT3 car. However, a number of GT3 manufacturers were understood to have been against the mandatory test for each model, as it would have added unplanned end-of-year costs to provide cars, team operations, logistics and other added resources. The joint test was announced by SRO founder and CEO Stephane Ratel during the CrowdStrike 24 Hours of Spa in June and IMSA President John Doonan told Sportscar365 that it was set to run to IMSA GTD ...