not sure Rob, haven't run them side by side. specs say NC-1 = 15700 rpm NC-8 = 16000 rpm so a rule of motors up to 16000 rpm or NC-1 or NC-8 only would fix the problem . NC-1's are not available in new release classics
Modern FIA GT would be covered if the Ninco GT class is opened up to include other brands, we already have the Ninco Gallardo, Ferarri 360GT and Porsche GT3 in this class, we could also have the Scalextric or SCX Aston Martin, SCX Corvette C5/6, Scalextric Ferarri 430 GT and more. To have FIA GT as a separate class would be doubling up.