this has been beat to death so many times on other forums.
Key points:
Nissan never promoted, nor put in the manual launch control. It clearly states that the warranty is void if the car is driven with the traction/stability control off.
Nissan provided proof that the car they used to get that ring time did have the same tires you can get through the dealer. The driver did hundreds of laps before the time was recorded, so he knew the car, and every turn he came across. Nissan even offered to give porsche driving lessons in their statement.
Just because you have a GTR doesnt mean youll be doing 7.38 laps around that track. Put the average joe shmoe in the zr1, and hed probably pull close to a 8 minute lap. Driving takes skill and practice. You have to know how far you can push the car in certain turns, and what the car can and cant do.
As far as the tranny issue. Its no different than a someone with a manual tranny dumping the clutch at every stoplight. The clutch will eventually go out, and wont be replaced under warranty. And im pretty sure in my cars manual it says nothing about launching my car. So why would i expect the company to replace it?
the true test will be when the V-spec comes out.
The prototype is already doing 7:25s
Nissan GT-R V-Spec lap times stun observers - Autoblog
That will be the true comparison to the ZR1 and ACR viper