Aight, thank you all for the guesses. 😛
It's the TV camera itself. 😊
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Full Nordschleife is completed, modelled (most of the cams) on the N24 2024 event. It's not perfect (trees grown a lot!), but like 99% accurate. I've found that I can (not say "easily", but) do TV camera sets that model the real broadcasts more accurately than most AC track mods out there.
The above example is actually one of the least accurate cams in the set (that's because there's a tree interfering on the Kunos track where the 100% correct spot is, a little further up and back). But it's a historic camera spot, used since the 1970s, and quite rare -
...So it's a good example still, because I've also found A TON of archive youtube footage where the middle part of the track is also camera'd up trackside! (Instead of heli, as nowadays) That's from where the last trackside cam currently loses the cars at Aremberg exit all the way to where they pick them up again on the example above, the entry to the Karussell. All pro shot! (except a small part on Kesselchen and Mutkurve)
I'm thinking of releasing the Nordschleife layout (and the Tourist, cause it's almost the same) for free on RaceDepartment, and create a Patreon for the full package, as well as the other tracks I've done, or nearly completed. I feel like it's worth it for their unique level of accuracy. I'll post the RD link (not the paid link) closer to release.
Here are some more shots:
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This is the Flugplatz angle used until they graded the track after Mardenborough's crash in 2015, and it beautifully shows the cars getting light there. On the current, graded version, they don't do that anymore and the track, realising this, moved to a full head-on cam nowadays that focuses on the general steepness of the hill instead. (ks track is a 2014 scan, so it still has the jump, and I thought the old angle is more representative for this one!)
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I've found this angle from the DTM 1993 race at the full Nurburgring; they had this dramatic camera angle for the Foxhole exit kerb ride. This shot gets more dramatic on replay, the heavier you throw the car in!
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This is the standard N24 2024 camera for the Pflanzgarten 1 jump, nothing to comment here - besides the accuracy!

About 80% of all cams are from the N24 2024/2023 event. Full list of events & year for each camera # will be in the Readme.txt file.
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Finally, this Tiergarten angle is from WTCC's 2016 race on the full Nurburgring - it's a bit lower than the angle they use nowadays, and so the small increase in drop towards the very end of the downhill, just before the compression, is more pronounced. The current higher cams hit the entire drop from the same angle, so the increase in steepness is less noticeable.