Comically fast, like video-game-I-can-just-hit-restart fast. A couple highlights of that YouTube video from sections of the track that are notoriously difficult: [YouTube Time] 00:49 -> 00:53 - Flugplatz at nearly 170mph is insane. Total trust in downforce and makes up many seconds if done right. 01:13 -> 01:25 - Fuchsrohre bottoming out at 200+ mph is nuts. 03:15 -> 03:20 - Interesting that Timo avoids the carousel.…
> A sub-5 Ring time would easily be possible with a non-homologated F1 car similar to this unrestricted 919. Easily? No, I respectfully disagree with your assessment of what is involved. CFD is not even close to being able to accurately predict a race car's handling so therefore it would take testing--a lot of it. In all likelihood it would cost hundreds of millions of dollars to design, test and build a GP car that…
I don't think it'd cost mid 9-figures to integrate and tweak technology that is already well-understood. But then again it is [M]otorsport, where the [M] stands for Money. Red Bull could likely do it for low 8-figures with Mr. Max in the seat.
[1] https://en.wikipedia.org/wiki/List_of_Nordschleife_lap_times...