Re: Anyone else notice this "Special 100S" on E-ba
looks convincing, but....
It would be impossible to say for sure, there was never any set list of parts that made a "100S". and the factory never kept any records. Some cars that were sold as a "true 100S" had nothing more than a louvered bonnett. Others had a big list, including a hotter cam, bigger carbs, and a special distributor.
Even if it's not a true "s" it seems to be very well documented.