Save hundreds of dollars a year on gas! Amazon offers the Automatic Smart Driving Assistant for $79.99 with free shipping. Deal ends soon!

What makes this deal hot:
You save 20% off the retail list price. That's the lowest price we could find currently.

What this does & Why you need it:
The Automatic Smart Driving Assistant simply plugs into your car's data (OBD-II) port and wirelessly connects to you smartphone. Automatic helps you make small changes in your driving habits that can lead to huge savings on gas over time. Requires iPhone 4s, 5, 5c, 5s or Android 4.0+.