An anonymous reader writes "A company named Turboxs has created an interface for the Gameboy Advance that plugs into your car. It appears to allow for tuning as well as data logging. The Turboxs Dtec lets you use your Gameboy as a Boost Gauge, Exhaust Gas Temperature Gauge, Air Temperature Gauge and Tachometer. Future plug-n-play sensors will allow everything from Knock Indication to Vehicle Acceleration. Previously this was only available via a laptop or pda, but bringing this to the gameboy may open up performance tuning to the masses without the expensive peripheral hardware."