One, they prevent air flowing over the sides of the car from spilling under the car which reduces the effectiveness of the cars underbody aero. Two, by trapping the swirling air on top of them, they create some downforce by generating a pressure differential between their top and bottom surfaces.
We were pretty amazed at how simple the car is, something that is even more amazing when you consider that it is nearly as fast or faster than race cars costing many, many times more.
William has reported to us that although his car is crazy fast and depends strongly on aerodynamics for its speed, it is very well balanced, predictable and surprisingly easy to drive. After having seen the car tear it up in person in its recent configuration we can attest to its unbelievable speed, especially in high-speed turns.
In 2019, William and his Civic will be attempting to make history at Japans time attack benchmark time attack track Tsukuba Circuit. The car will also make the trip down under to once again compete in WTAC. We cannot wait to see this.
It will be interesting if something other than an FWD car can rise to the challenge or will it be that FWD is the new time attack formula for fast!