CBRTv2 is the latest evolution of the highly successful Car Braking Reaction Tester (CBRT) road safety awareness aid. One simple connection to a car cigarette lighter and the system is quickly and easily installed in any motor vehicle (mains adapter supplied for classroom operation). The CBRTv2 can then be used in either one-on-one or group environments to demonstrate distances covered due to reaction and braking times in emergency stop situations.