Jamie's M3 E46 has an MBE9A9 ECU controlling the engine and electronic throttle with the option to run VANOS, but it is not currently enabled. The MBE9A9 also receives via CAN wheel speeds and slip from the BMW TEVES system. It also controls the rain light and pit lane speed limiter. The entire car wiring harness was built for Jtech by Simon of Sileck, which integrates all the car systems.
See more about this car at Jtech Automotive website