In your column you frequently mention that certain parts are used by more than one manufacturer (eg: old Ford Galaxy/VW Sharan/SEAT Alhambra), and some engines being used across a range of manufacturers. Is there a website where these things are listed? (In particular, I'm trying to find out if the 1.6 HDi diesel engine in my new C3 Picasso VTR+ is used in other makes/models). Incidentally, many thanks for your excellent review and video of the C3 Picasso, which formed the basis of my buying decision.