I'm pretty sure that the laptop is in direct comm with the ECU, which in turn controls the electric motor in the throttle body.
I would expect that car to operate the same as a modern car where the pedal potentiometer sends a signal to the throttle body stepper motor. In this case the pedal is bypassed via the ECU.
Originally Posted by Jeremy Clarkson
Has Seb got a girlfriend? Could Mark pork her perhaps?