Vital Engineering created the OBD Bluetooth Transmitter. A toolkit designed to connect to the OBD-II system (a system which became a standard on most cars built since 1996). What this transmitter does which I find really cool, is that it will diagnose your car and wirelessly send the data to a PC or any bluetooth device. Thus, eliminating the need (in most cases) to open the hood and guessing what is wrong. I love the direction of this technology.