Hmm, was just thinking that the wing also comes out to act as an air brake so maybe he was slowing down. Although in Air Brake mode the wing should have an almost vertical angle to it and not be flat. I still think he was speeding!
When the car reaches 220 km/h, hydraulics lower the car until it has a ground clearance of about 9 cm. At the same time, the wing and spoiler deploy.