Yes, I made the rear flares. It was a lot of work and has prevented me from attempting the front end. The black Mustang II is my daughter's. Mine is a 1977 and hers is a 1978 still undergoing some restoration. We autocross the cars on a regular basis. I run many events outside of the Chicago area, including every SCCA National Championship that has ever been. Since my daughter, Aimie, runs in the local Street Tire class, she doesn't run with her car outside of the area. She will begin driving my car at some away events later this year. I should mention that the picture shows my wife in the red car. She has also been an active competitor for 17+ years.
BTW, the maroon car is, indeed, a Datsun 280Z.
Rick Ruth