This technology allows you to capture your real-world race using a Toyota “86” sports car and import it into Gran Turismo 6.
"The [Sports Drive Logger] collects data passing through the vehicle’s controller area network (CAN) and also positional data from its dedicated GPS, and formats the data for easy copying to USB memory. CAN data can include GPS data, accelerator pedal strokes, steering angles, brake operation signals, shift operation signals, engine speed and vehicle speed.
Driving can be simply watched and analyzed within the game from the multitude of camera angles. Drivers will also have the ability to race against themselves or their friends’ real world data in any of Gran Turismo’s virtual cars. Drivers will also be able to compare their own driving data against laps from professional drivers within the game to improve their acceleration, braking and cornering technique.”
(via Toyota Sports Car Owners Can Rewatch Real Driving In Gran Turismo - PSFK)