That's a interesting question Rudi.
For sure we know that Felice Bianchi Anderloni had very close political relations, and he certainly had picked the right name for his company, Nicola Romeo had it to. In general the so called Industrialist has great influence on the politic in Italian in this period. Mussolini was personal interesting in fast cars and competition.
And as I se it, there was no big difficulties to settle the common interest for promoting a new competition class in general.
In 1930 the new class Turismo/Touring was introduced, a sort of competition for standard cars. In general a brilliant idée. Then there was a possibility to use experience from competition in daily cars, and this could led to development, first the market and then the cars.
We often se the same arguments to day in connection with high performance competition.
Felice Bianchi Anderloni who had participated in competition before he took over the Carrosseria Falco, and named it Carrosseria Touring in 1926/27, if I remember correctly.
He drove small Peugeots,in competition, for promoting these small cars into the italian marked.
His aim was to produce lighter cars, as he did see the weight as the enemy.
When he establish Carrosseria Touring, he got the licence to build light bodies on a patented design by Weymann.
When the new class was introduced, both Nicola Romeo and Andeloni was prepared.
In connection with the MM 1930 Carrosseria Touring presented what they called Semi Grid, a new way to produce light bodies, and it was used on the chassis of Alfa Romeo 6C 1750.
It was a body construction containing wood, canvas, and aluminium. The experience lead to the construction of the Supperleggera design in 1935/36.
As one can see the idée of competing in a daily standard car, was already corrupted by the first possible opportunity.
To day, I suppose that these first Semi Grid designs would be regarded as prototypes.
Felice Bianchi Anderloni was not only a brilliant thinker in connection with body designs. he was also a business man.
The Carrosseria Touring was settled some years before the first Touring class was introduced. But taking into consideration, that he was prepared for the new class, with the new body design, in 1930. It can easily led to the assumption, taking his business skills into consideration, that he had used his influential connection,to get a proper name for the new class.