I don't see how that vette vent would work on ours because the Vettes glass raises and somehow our whole hatch would have to rais and I don't think that would be a good idea. My idea would be to have a flow through vent under the wing, so that when that raised at speed, on the NA's anyway then the air would flow through. I think the windscreen idea may work if it was plexi that basically sealed the area off. In fact next week I'm planning on putting in a cardboard cutout to attempt to see if even this minimal block would work.

One thing I just noticed is after putting on 235's up front, the wind has been somewhat diverted that I don't get as much when the windows are 3/4 down. Before I couldn't have the windo 1/2 down before it got really thumping back there. Know it sounds crazy but it's true. It's still there, just not as bad, so apparently there is some turbulence off the front wheel well with the standard 225's and the small bit of extra space that isn't there as much with the 235's.

the other option I was thinking was the corner window if it could have the venting capability instead of fixed I think that would solve the problem too. Doing that however would be a chore. and probably really expensive too.