generates 40 N down-force at ~90 km/h....
Flow Simulation Settings:
external flow, gravity on, working fluid: air, pressure ambient, temperature 35 deg celcius, 60% humidity, 1 % terbulance, level of mesh refinement: 4

computataional domain size:
x, x 2 m, -2m
y, y 1.75 m -2 m
z, z 1.75 m -3 m