a case can be argued for either.
I have fully resprayed 3 cars.
1. The 16v Mk1 which went oak green, which was a 16v Mk2 colour.
2. The Mk1 GTI which stayed original Diamond Silver Metallic
3. The scirocco 20VT ??
The Rocco has a later model motor, so anything is allowable.
I`m leaning toward the green at the mo.