V8 4.2L Body parts
 

Hello,
I need some help about body parts for a Phaeton V8 from 2004.

-- Are all exterior body parts the same? (Front grill / Front bumper / Hood / Fenders / Xenon headlight /……).
Or are there differences which make that these parts can't be installed on other models?
For example: Fender from a V8 4.2L on a W12 or Hood and Headlight from a V10 TDI on a V8 4.2L.

Thank you.