Yes, you just need to create a pressure gradient, from atmospheric in the clean air well behind the pace car to below atmospheric immediately behind the fairing. In fact, you can do it with just a barn door, as you'll see if you watch what happens to leaves behind trucks - they get picked up from the ground (where they are stationary) and move along the road some before they get dropped. The trick is to maximise the thrust without destabilising the cyclist with the wake vortex.
Yes, you just need to create a pressure gradient, from atmospheric in the clean air well behind the pace car to below atmospheric immediately behind the fairing. In fact, you can do it with just a barn door, as you'll see if you watch what happens to leaves behind trucks - they get picked up from the ground (where they are stationary) and move along the road some before they get dropped. The trick is to maximise the thrust without destabilising the cyclist with the wake vortex.