*The Mazda suffers too much slope.The centerline flow may be attached due to downwash but its accompanied by high drag vortices
*'relaxing' the roofline helps
*When you hit the Koenig/Kamm aft-body contour you can be separation and vorticity free
*The hashed lines behind the RX-7 indicate the volume of space which is compromised by it's body design,leading to Cd 0.38 instead of Cd 0.10 as with
