TomTom CURFER ; Connect your Car; Improve Your Driving TomTom CURFER plugs into your cars OBD port, links to your smartphone and gives you instant feedback on both your driving technique and your cars performance. It can even help you find where you parked your car. Get coaching tips on acceleration, braking, cornering and idling. Earn badges for your skills and share scores with friends. Want to know how far youve driven around the world; The CURFER app can tell you that too. Drive smart while having fun; Compatible with all tomtoms. Advanced car datathe curfer app shows detailed data on your cars battery voltage, oil temperature, engine load, air pressure, throttle position. Size H4.8, W2.7, D2.5cm. Weight 18g.