I did take some time out to decipher classes, and found LTA version of /pro is not the same as the /pro from another place.
there is a nissan looking like a space ship labeled as /pro with a world record at 174mph in the less than 2.1L.
G/PRO to be precise, but that leads me to other cars in the pro category.
I was going along with this , even asked questions regarding my lug nuts that look like giant acorns (1987 peugeot).
I guess i go T/O if my time ever comes.