Nissan in WEC remind me Honda F1 PU project. In fact, all the Japenese manufacturers struggling in Motorsport overall since last year :
-Toyota, won only 1 times the WEC Championship, and always failed to win Le Mans. Getting totally raped this year by Porsche and Audi. And in Nascar their V8 seems less powerful and less reliable than the other engine.
-Honda, in WTCC they fail and win only 7 races since 2005 and no tittle. In F1, so much money spent for a public disaster for McLaren and Honda with furthermore a big mistake in their marketing/communication approach. In Indy they have an exclusive partnership with all team, but when Chevrolet come again, they lost, but sometimes they win (in 2013) and they win the Indy 500 but if you take an overall view, the Chevrolet engine seems a little bit better.
-Nissan, come to Le Mans many time without official participation, they come and they are 20sec a lap off the pace.
So, the Japenese working method is not good enough ?