I don't but I would join in. 2019 GS - cracked rear - when I went to the dealers of course the 1st thing they say "what did you hit" they had 2 others that week all of them were black - I did take pictures of the inside the spokes where maybe it shows lot/production control numbers of both mine...
I ordered a 2018 GS last Monday as it had to be ordered by Nov 18 (I wanted a Spice Red interior and I was not sure that it would be available in 2019 - it will be - as well I thought it would be neat to get a 2018 as only 9700 cars will be built - which is one of the smallest production years...