Has a box that plugs into your cars diagnostic port and a coloured LED display you mount in front of you. Gives feedback about how economically you're driving. Tracks travel for tax use. Shows car errors. You can get some of these functions with much cheaper devices, but this packages it all nicely and adds some stuff those cheap ones don't do (like the tax man stuff).
Has been offered cheaper than this on OzBargain before (has been $75!). Sparesbox sell it and they sometimes have 20% off.
Heated discussion about what it does - is it worth it, in these previous deals:
https://www.ozbargain.com.au/node/298253
https://www.ozbargain.com.au/node/305253
From one of the posts above
What does GOFAR do?
A low cost device that helps you make the most of a (generally rather high cost) device - your car.
- It connects your car to your iOS or Android phone (and the cloud) via the car's diagnostic port (OBD-II)
- Driving Trends - fill ups, speed, distance, emissions, time in traffic, objective driver scoring etc*
- Easy expenses - logs all your driving like a champ. Never miss a claim.
- Economy coach - save over 10c a litre forever by following the safe, simple driver feedback
- Car health - alerts you (in plain english) when your car has a confusing error light*
- Car health - get a transparent service quote automatically when your service is due
- Save time - we can service your car at your home or office - no more struggling to the dealer
- Learners - get consistent, objective feedback as you improve (and a 90kph speed alert)
- Works offline too - stores your trips even when your phone's dead or not present
- Bit of fun - compete with friends or family or colleagues on the driver leaderboard
* Live on iOS. Coming soon on Android.