A machine for monitoring a motor vehicle operators actions and reactions to driving condition as they drive and alert other drivers behind them of their braking, coasting and accelerating actions with a multi function lighting device with A computerized light control module that will analyze information from the vehicles on board factory or added computer and/or mechanical system and display it's information in a lighted form on the rear of the motor vehicle with A multi function light output source that that can receive the gathered data and display it in a lighted way to inform other drivers of the drivers action and/or reactions to certain driving conditions, example: (bright green, green, amber, red, bright red, pulsating red) when signaled from the light control module.