Traffic Assistant is an app for monitoring traffic on your favourite routes. You can find out where the delays and traffic jams are on your in just one tap. Or you can set up auto-notification and the app will warn you about any problems on your way instantly when you need to know.
Your route is defined by the departure and destination points with an optional waypoints. To make things simpler the app can also use GPS to find your departure point.
UPDATE: You can track your refuelings, fuel consumption, fuel costs and other vehicles costs.
All features are accessible with the trial version, but it contains ads.