Thank you for that. Now what is really interesting, in this list of S6plus colours that I found, there is no "Misano" red, just tornado red. (But the rs-blue pearl effect, aka "Nogaro" is there). Regardless, the way to tell a real S6plus is a) V8 (and AHK at that) and b) more importantly WUA at the start of the vehicle indentification number on the scuttle edge.

Not like this 98 C4 A6 avant (my DD) but similar, with WUA...:

The list of S6plus engine numbers by date so you could numbers match the engine to the car (at least match the build month):

Not like this 98 C4 A6 avant (my DD) but similar, with WUA...:

The list of S6plus engine numbers by date so you could numbers match the engine to the car (at least match the build month):

because your numbers don't match this list:
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