https://play.google.com/store/apps/details?id=com.binarytoys.speedometerpro

ΓÿàΓÿàΓÿàΓÿàΓÿà Drive safely!
"Most advanced Speedometer App ΓÇô AppEggs.com"
The most advanced and intuitive Speedometer and Car Dashboard application that helps you drive safely.
ΓÇó Speed Edge GPS Speedometer.
High-accuracy* GPS-based speedometer that shows the real speed of your car in mph, km/h or knots. And for each speed unit you can define an individual gauge range.
ΓÇó Maximum indicated speed is 1900 km/h / 1160 mph / 1000 knots.
ΓÇó Speedometer overlay.
Small speedometer stays on the top of active application. You can also setup overlay place for individually for particular application.
ΓÇó Switchboard.
Provides fast switching for speed units, activate HUD and more. Tap the Speedometer scale to activate it.
ΓÇó Fast app.
Assign any 3 application to start on GPS indicator tap. Call your favorit Navigation or player just in two taps!
ΓÇó Three shortcut pages: Application, Communication, Navigation for total 36 user-defined application shortcuts
ΓÇó Average Speedometer.
Tap Compass for switch to Average Speedometer, long press resets Average Speedometer for new measurement
ΓÇó Speed warnings
You can define up to 10 speed limits and application will notify you visually and with an alert sound when you go over any of them.
ΓÇó GPS Compass. 
Insensitive to electromagnetic fields and the iron of your car.
ΓÇó GPS Altitude.
Reports altitude, measured by your phones GPS.
ΓÇó HUD mode.
Mirrors the numbers so you can place your phone under your car's windshield and see the speed reflected on it in the dark.
ΓÇó Address finder.
Finds address of your current location in manual mode (by request) or automatically (depends from your moving speed and distance).
ΓÇó Average speed calculation.
Automatically calculates your average moving speed and total average speed of your whole trip.
ΓÇó Racing meter
Measure and calculate time for standard performance measurement distances: 0-100 km/h, 0-60 mph and for 1/4 mile.
ΓÇó Predefined and custom Trip Meters
Meters which keeps all information about current trip, accumulated today trips, yesterday, current week and month and total info since app was downloaded. 
This information includes trip duration, distance, begin and arrival coordinates and address, speed (max, average and moving average) and time (total, moving and idle). 
You can save any Meter on SD, or send it by e-Mail
ΓÇó Tree Custom Meters.
You can rename them and reset in any time.
ΓÇó Separate limits settings for km/h and mph units.
You can easily switch all limit settings when traveling beyond the border of your country.
ΓÇó Customizable UI color.
ΓÇó Car dock support.
Application automatically starts and exits on docking and undocking.
ΓÇó Car Mode Home. 
Activate Speedometer using HOME button when phone in Car Mode. You also can use "Forced" mode if your car dock doesn't handles autoswitch into Car Mode.
ΓÇó Battery status indication.
ΓÇó Background mode
When activated, the application still works in the background. All logs keep counting time and distance and the application will notify you when you exceed the speed limit as usual.
ΓÇó Display speed in Status bar
In background mode, the application will show current speed in the status bar and even gives visual notification for speed limits! **