197 has AC, a better dash and interior, more sound deadening, leather steering wheel and gearknob, side curtain airbags, colour coded mirrors and rubbing strips, silver wheels
197 cup has a cheaper dash, AC was an option, less sound deadening, cheaper steering wheel and gear knob. unpainted rubbing strips and mirrors. comes with more focused suspension and is lighter than regular 197, grey wheels, red brake callipers
later 197s and all 200's were available with the full spec but with the cup suspension as an upgrade, same as the 182.
i have a full fat 197 but have now upgraded to cup suspension.