[The Radium King]

no idea on legality, but the pressure info would be excellent. even just seeing the airspeed info is interesting. in your initial post, the blue air behind the cockpit is slower than the incoming air so is the turbulent area i was speaking of. am i correct in assuming that the model with the car on an angle has the spoiler up, while the top/side models do not? if so, note how the red 'lift' area is reduced, replaced by the blue turbulent flow.

re ram air, i think grab the fastest air you can - somewhere on the roof in this case? this appears to reflect real world practice as well.