Before my beloved F-4's were put out to pasture for good, an attempt to modernize the fleet was initiated by the Israelis...It appears that at least one copy was produced and made a startling appearance at the 1987 Paris Air Show...
Most remarkably, the Super Phantom could supercruise, meaning it could sustain flight above the speed of sound without using fuel-gulping afterburners. Even today, the United States has only one operational super-cruising fighter, the F-22 Raptor.
There are two videos from the Paris Air Show linked in the article, but cannot be embedded here for unknown reasons...Look for them in the text as they are worth watching...Note how the Super Phantom could now stand on its tail and accelerate straight up without its signature smoke trail following it......Ben