The video and audio are not synchronized. The "music" is 100% car/driver data generated. I just took a few minutes of data from 1.5 hours of the log file (which was from the drive shown in the video), resampled the data at 1 Hz, scaled it to the range of musical notes, then mapped it to instruments. The audio is played with a random section of the video. The data and video is time stamped so if I had more time, I would have synchronized the video with the audio track.
What's interesting musically is (a) many parameters are correlated, gas pedal/engine rpm/engine torque/car speed/fuel consumption, (b) the faster the rate of change of a sensor, the larger the musical interval due to the 1 Hz sub sampling, and (c) if a parameter doesn't change, the note is sustained (or for percussion, the drum is hit once) which make for nice pauses and silences in the music, otherwise every instrument would be drowning out the other.