I don't know german so can't figure out if he was carrying a passenger, but it was definitely done on the full track, autobild never uses the short one.
Porsche 911 GT2 lap time at Nürburgring Nordschleife Full
|Track||Nürburgring Nordschleife Full|
|Vehicle||Porsche 911 GT2 (997)|
|Power / weight||530 ps / 1462 kg|
|Average speed||166 kph (103 mph)|
|Submitted||09.09.2011 by autobild|
Reference: Auto Bild: Nordschleife Battle - Honda CBR1000 RR vs. Porsche 911 GT2; 2007