Doing a bit more research yields this,
https://core.ac.uk/download/pdf/195212282.pdf
Very interesting, not wings technically but use of blown aerofoils, that selectively increase lift in order to reduce rolling resistance, and increase downforce for grip. Interestingly, they also use the same effect on the sides for stability.
The gordon murray t50 used similar principles though only for downforce, so the precedent is there.
"Lift coefficient was increased
for rolling resistance reduction by blowing only the
top slot, while downforce was produced for traction
increase by blowing only the bottom. Also, side force
and yawing moment were generated on either side of
the vehicle, and directional stability was restored by
blowing the appropriate side slot"