From the CFD analysis of the vehicle it was established that a lift coefficient of -0.87 could
be obtained from an under-tray design consisting of three rear diffuser tunnels, and one either
side in front of the rear wheels. Exiting the exhaust flow into to each of the outside rear
diffuser tunnels through a 20mm diameter pipe produced a 34.5% increase in the amount of
downforce produced by the model.