more examples to extend on my previous post

some rare occasions you do see something like this Red RC ? RC Car News » Malopolska Grand Prix finale ? Report in front paragraph
"Malopolska Grand Prix was held in Cracow recently. The event was held on ETS black carpet and over the season the series attracted driver from Poland, the Czech Republic and even France to compete in the several electric on-road classes such as Pro Stock 13.5T, Spec 17.5T, Formula 21.5T, 1/12th Pan Car 6.5T, GT 17.5T Boost, Kadet/Rookie 21.5T and E-14 Rally. "

ETS 13.5 Super stock class run alot but you barely catch reporting on it. one might says they run 13.5 where "we slow everything down in America" then you read the rules Euro Touring Series » Rules for the 2017/2018 season
-13.5 specific brand handout, rental motor, turned in at end of race, no opening or adjustments allowed
- ESC specific brand with RPM limiter, you can own one or rent it
- Gear ratios limited