E01e/w is never intended to be a mass production engine, the engine is made based on small and hand-built environment. many elements found on it is actually quite high end which is unlikely to be doen under the economical scale , and to change everything into what proton can mass production , it would involve damn lot of reengineering and tweaking to ensure that the engine is economical to be run and built . that is why the engine has never been used for the production for proton, many high performance part just aren't suitable for niche player like proton which has to be profit minded first.
2010 proton waja, will be based on current lancer GT?