THIS TESTING IS NOT FOR 70MPH CRUISING ON THE HIGHWAYS!!!
Why would we spend multiple thousands of dollars to pick up 1-4 mpg on a 30+ year old car?!?!?!
The testing(IMO) should be for how to make a S30Z have best performance on a road racing track with a top speed around 150-160 (400hp). All that without extensive body mods (spoilers, belly pans, fender ducting, front end designs, add on vortex generators, etc... are what we should look at).
I think once we go past the point of fixing the body we have to work with you might as well design a new body...then you would not have a Z any more...
You would have your V8 powered Z car with a really nice areodynamic body on it with the crappy Z frame and suspension(struts, T/C rods, bump steer etc..), you might as well design a new car.
My 2 cents...
Maybe someone should start a thread about ideas of how to improve the S30Z's body without going to the extreme...