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You can see how the bottom of the GT-R is just about a flat bottom from the factory with lots of drag reducing plastic panels with venting to keep heat-sensitive under car parts cool.
Considering the great amount of time Nissan devoted to reducing drag on the GT-R, including a lot of small aero details that are not exactly cheap to implement, we find it odd that they didn’t do anything to clean up this area of obvious improvement.
The good thing is that the stock accessibility of under car components for service, adjustment, and repair remains the same. If you have ever had to work on a flat-bottomed race car, you will know what we mean in that it can be a bitch to work on these cars, especially when doing chassis setup or major repairs at the track.