[Horse]

Ford has been known to work very closly with Roush on MAN"Y projects- in fact roush "built" the motor for the GT40 concept cars.
Ford has Roush develope most of its prototypes too.
As to Saleen- why would Ford have involvement from a competitor?? lest we all forget that Saleen has the S7 to think very heavily about-
why would Ford have saleen build the car- or even help with it- as it undercuts the S7 in price and possible has better performance. that would not be a good I dea for Ford.

as to SAI with GM motors- well how bout this: IIRC Roush also did the developement work for SAI with their "Aurora" V8 as GM didnt give a hoot about SAI once they sold them the power train. wouldnt help them at all.