Scanners that can read data from your car's OBD-II port (which is in every car built since 1996) aren't exactly new; they're on-hand at every mechanic's workshop and curious car enthusiasts can buy them from most hardware stores. But few port readers are consumer-friendly enough for the everyday driver to grok. Enter the newly announced Automatic Link, which uses Bluetooth 4.0 and a paired smartphone to deliver diagnostic info with a decidedly novel twist. Instead of just ha
