The list itself is broken down into categories. Manufacturers publish times for promotional purposes while automotive media outlets usually publish times for comparison and reporting purposes.
The entire track, the Gesamtstrecke see map above was The lengths of the two segments, when considered separately, add up to more than the whole, since each circuit also incorporated some parts of the Betonschleife.
Along with races and timing events under the rules of their respective sanctioning bodies , the operators of the track have instituted official rules as of that govern the measurement and certification of lap time on the Nordschleife, with measurement over the full length of the track timed with a flying start.
Timekeeping is supervised by a notary and the vehicles are scrutineered with regard to their series-production state. The German magazine sport auto publishes its "Supertest" of cars, in which the lap time usually driven by editor-in-chief Horst von Saurma at the Nordschleife is the most discussed result. The road legality rule also applies for the tyres. British motorcycle magazine Performance Bikes began testing their bikes in a regular feature at the Nordschleife in March and finished in December To date there are 28 lap times published in the regular feature.
As motorcycles are forbidden to participate in industry pool sessions and after-hours test sessions, Performance Bikes were forced to test during quiet mid-week tourist sessions, where speed limits apply in some sections. This means their lap times are measured from bridge to gantry see below and are approximately 22 seconds shorter than a full 20, m Nordschleife runs are conducted or observed by various other media outlets, such as the British Evo Magazine or Auto Bild from Germany.
