What's a Nür edition?

Before going through the visuals, you should read my previous post "Buying a Skyline GT-R".

So, if you have gone through and understood the difference between the models and the differences between the year of productions, basically, Nür editions are actually V-Spec II's or M-Spec's with a few extra bits to commemorate the final production run of the BNR34.

These models both used an N1 engine from the homologation special. The RB26DETT N1 is a modified version of the RB26DETT engine, developed by Nismo (Nissan Motorsports) for Group A and Group N motorsport. Nismo found that the standard RB26DETT engine required too much maintenance for use in a Group-A or Group-N race car and consequently designed the N1 block. Nismo balanced the crankshaft to a higher specification than stock, as the RB26DETT engine experiences vibrations between 7000 and 8000 rpm. The engine also received improved water channels within the engine block. The top piston rings were also upgraded to 1.2 mm. The N1 engine also has upgraded turbochargers.
The R34 RB26DETT N1 engine used Garrett GT25 turbo chargers (which use a Ball Bearing).
The biggest difference between the turbochargers used in the N1 engine, and the standard RB26DETT engine, is that the Turbine Wheels in the turbocharger are made from Steel, rather than the Ceramic used for the Standard RB26DETT turbochargers. The Ceramic turbine wheels are found to be very unreliable when used at higher temperatures (such as when the turbochargers are used at a higher boost pressure than stock).
The RB26DETT N1 Engine Block uses an 86 mm bore which can be bored up to either 87 mm or 88 mm. The N1 block is stamped with an identification mark of 24U, whereas the standard RB26DETT block is marked with 05U. The engine cam covers are also covered in gold. Nür's have a gold colored VIN plate instead of the standard blue or silver VIN plate.

Here's a picture of the 24U block from my previous post, "More Updates".

You can clearly see the stamp on it.

Here's a standard 05U block.

Picture from my previous post, "Toying with the new Toy".

As you can see, the cam covers are gold in color. Yes, these are easily replicated. All you have to do is buy the Nür edition cam covers or spray over your original ones. The most difficult thing to replicate is the gold VIN plate which you can easily see in this picture.

Example of a '99 spec BNR34, Russ's previous engine bay. As you can see, the engine bay is black and not painted in the car's color code. The writing on the fuse box is white not yellow like the later models. Most importantly, the VIN plate is blue in color.

Here's an example of a '00 spec onwards BNR34. The engine bay is painted in the car's color code, not black. The writing on the fuse box is now yellow, not white. The VIN plate is now silver, not blue.

The Nür has a 300km/h meter cluster (speedos). Nissan used the same speedos during the test in Nürburgring.

From my previous post, "Carbon Garnish for the meter cluster installed".

Most Nür owners tend to not upgrade to the Nismo meter cluster because of this.

The Nür also comes with a badge on the bumper which is a proper 3D cast badge and not like the stickers on the V-Spec and V-Spec II's but these are easily bought and replicated.

Other signs of a Nür's cabin is the same as any 2000 spec BNR34. The cabin of the 2000 and above models are now black and the center console has been changed to iridium color with a white-ish back light. Aluminum sport pedals have been added to the interior as well. So if you see a Nür with grey interior with red stitching or the center console is gold in color and the back light of A/C display is greenish, it's definitely not the real thing.

The M-Spec edition of the Nür still had leather seats but the seat foam was altered to give a better ride in conjunction with the Ripple Control Dampers. Only 1000 Nür editions were made – 250 M-Specs and 750 V-Spec IIs and they were all sold on the day of release.