In light of Mercedes Customers' enthusiasm to have the newly updated Power Unit that the works team debuted in Monza. Head Boss of the Silver Arrows has told Motorsport that the engine is just a Development Spec with 2016 in mind.
Since the engine were installed into the W06, Mercedes have suffered from three retirements which now is starting to bring into question the German Manufacture's reliability. And because of that, Wolff believes that it is too risky to produce numerous engines for their customers for when they can not guarantee 100% safety.
"You've seen what happened to us in Singapore and Monza and all the other races,"
"The decision we took is to do an R&D exercise in order to learn more for next year, and you can't do this kind of exercise with a customer team, because the risk of DNF'ing is there.
"If you go into a development direction you can't make eight engines, because it could be the case that it's the wrong direction we went."
Wolff also spoke down on how much of an improvement it is from their old specification. Specifically aimed at those who believe that the exclusion was done deliberately to ensure they maintained an advantage over Williams.
"It's as simple as it is. I can assure that there isn't any miracle in that engine, [it isn't] a wonder engine.
"We are well ahead of Williams, but we were well ahead of Williams before."
Written by: Harry Shovelar
Bahrain International Circuit - Winter testing