We have 3 models :-
Cupra
FR
FR+
Mechanically - all are exactly the same (150 bhp standard)
Difference between Cupra and FR are :-
Cupra has CD autochanger - FR has single changer
Cupra & FR have different wheels (FR's much better IMO)
FR has silver wing mirrors (Cupra has body coloured mirrors)
FR has "FR" badges on each front wing above wheel arch - cupra doesnt (although some have the small cupra flag instead).
FR has slightly different colour interior
Some Cupra's have the "Cupra"
badge on the rear - FR doesn't
Difference between FR and FR+ are :-
FR+ has the Cupra R bodykit (front & rear bumper)
FR+ has a smaller version of the Cupra R wheels (17" instead of 18")
FR+ badges are all red - FR's are Silver & red
Hope that helps !!