Three tire size configurations @ Sugo on 28th Sep 2026 - BMW Z3

Tire Sizes Used 235/40R17 225/45R17 Objectives To confirm whether the 225-width tire provides sufficient performance, as rear camber adjustment is not available. To evaluate whether a wider tire can increase cornering speed. To assess the difference in acceleration resulting from changes in tire overall diameter. To evaluate the vehicle's behavior when using a narrower rear tire setup. Notes No suspension height adjustments were made to compensate for the different tire sizes. Due to a gearbox issue, 2nd gear could not be used at Turn 4 during the test.