If that was running in ITE, it might have been a 944 S2 - big difference - 3 liter 16v. Or why would an S be in ITE when it's classed as an ITS car??? The only way to tell is open the hood - smae body style for all, no visible body changes other than the markings other on teh rear (944 S) and the sides (16 ventilator)

mark