8 months ago, when I bought this game at A-0, never had played GT games before, only to have heard this track through grapevines, never seen in it its entirety either (I don't youtube either),
ff to today, this is now my favorite track, and don't let the 73 uniquely different corners discourage you, for every 3 laps you do on this track (all aids off, get the driving line OFF, ABS optional, brake balance 4/5 for safety) ; you will learn and appreciate the sections that YOU can tame the car with, as well as respect the few sections that THE TRACK will tame you and any car you choose.
I may have driven it virtually at least 250-500 laps by now, and still get "penalized" for pushing some limits too far, but the enjoyment of knowing when and how of this track, will easily become second nature to you, until you go online only to get destroyed by people (Europeans conceived on the Carousel) that are still, 25% better than you! It's a learning process, but in amonths time, you can lap 5 laps with a minor incident here and there.
My driving style requires me to find that car that can take me around the ring, as fast, and as safe as possible, (excluding the fake x2010). Favorites are: BMW GTR race car, BMW McClaren F1, any Vauxhall / Opel Astra touring car, Ruf RGT, Nissan Yellowhat, Arta NSX '00 , to name a few.
Havent read it yet much, but:
http://www.scribd.com/doc/2511327/Guide-to-the-Nordschleife