Very good read about the Nissan GT-R LM Nismo "history", with information from a former designer from the team.
It's in portuguese...So you can give a try on google translate:
https://translate.google.com/translate? ... t=&act=url
Main points I get from it:
- The designer said they didn't had the necessary time to test the car. The team leadership underestimated the necessary time/resources.
- The flywheel KERS and ABS system never worked properly, and consequently the brakes were overloaded.
- The Michelin tires they used (or tested) were not perfect for the car.
- The team knew the car wasn't ready to Le Mans, but they were obligated to race. So the fiasco was no surprise.
- Nevertheless, Nissan is satisfied with the media return they have had in 2015.
- They tried to change supplier of this problematic system for the 2016 car (to an undisclosed F1 team). But this new supplier delayed the project and therefore they would miss the start of 2016 season anyway.
- Since there will be a regulation change in 2018, they canceled the project for 2016 and 2017 seasons, because the chassi would have a short life span.
- Apparently, there is hope that they will return in 2018 with a new car.