Automatic Labs isn't the first company to attempt a car accessory that plugs into the OBD-II data port to deliver information back to your iPhone -- developers have been working on them for several years, with some success. Nicely designed for something that will be hidden away, Automatic Link ($100) is a small plastic box that plugs into the data port found on most cars made since 1996. Using Bluetooth 4.0, it communicates data back to any iPhone…