Nissan licensed the tech from ford for the gt-r. Its been in production since 2008 and has proven to be reliable. The engine in the gt-r can be tuned to well over 1000 hp on the stock block and the PTWA cylinder walls hold up fine. In more extreme applications they do bore out the block and put in iron liners but then you're into the 2000 hp range.Read it many times my friend.
Ford used the same exact process in 2013...
Yet not in 2014? Why?
Just not seeing anyone flocking to it. what I see as only marketing claims I fully do not trust. Prove it. On the street. Strip. Or drag over time.
Mabey the Japanese are using this?
In a 55 hp engine it should be plenty reliable. As to why they chose this process for the elio over the iron sleeves, they're trying very hard to hit the 84mpg goal and this helps them do that due to the advantages of this technology.
"Engine weight reductions—the coating can reduce the weight of a V-6 engine, for instance, by approximately six pounds.
Reduced friction between the piston rings and cylinder bore, which has been shown to deliver measurable friction reduction.
Improved oil and fuel economy.
Improved engine performance due to better heat management."
As to why other manufacturers havent adopted it yet, I would say inertia and cost are the main reasons. I expect more engines in the coming years to adopt it. Rumor is ford is developing a 5.0 boosted engine for the 2016/17 raptor pickup that will use plasma coated cylinders.