In a test recently conducted by German magazine naviconnect, the TomTom GO 940 LIVE came out on top for routing and fuel efficiency. The test involved a 300 km test drive with three identical cars, one of them equipped with a TomTom GO 940 LIVE. The car with the TomTom GO 940 LIVE scored best in all categories: fastest travel time and lowest fuel consumption.
The TomTom GO 940 LIVE is the only navigation device in the world that uses unique historical travel times and detailed real-time traffic information to calculate the fastest and most efficient route to a destination. Faster routes are nearly always more fuel efficient, since they involve less stop-and-go traffic; the fuel efficiency killer.
The differences in travel time and fuel efficiency were substantial; cars with other navigation devices took between 9% and 14% more time to reach a destination and used between 5% and 15% more fuel.
Read the complete test.