With a dry track for the remaining sessions, I could better test the various ride modes and new features. BMW has refined the software controlling each RR ride mode, resulting in much more seamless and subtler DTC and wheelie control intervention. Also, the ABS/anti-rear-wheel lift has been recalibrated to deliver greater braking stability. As before Rain, Sport, and Race modes come standard, while the Pro mode upgrade unlocks Slick and a new mode labeled User that allows selection of defined parameters (throttle response, peak power output, engine braking, traction control sensitivity, Race ABS, and linked rear brake/anti-rear lift strategy) that are fixed in the preset modes. For example, you can pair the soft engine response of Rain with all other parameters set to Slick. This feature allows you to more easily dial in a custom setup by toggling between a preset mode and a slightly altered User setting without needing to stop in the pits.