Dragy DRAGY - The GPS Based Performance Metering Device £139.00 £129.00 Dragy's innovative App redefines the way you measure the performance of your vehicle. Features:Measure acceleration (0-60mph, 60-130mph, 1/4 mile and more) Measuring braking time (60-0mph, 130-0mph and much more) Lap Time (available... Add to Cart