This year, the Legacy series comes with a new technology called PZEV (Partial Zero Emission Vehicle), offered on some versions. The technology enables a 90% reduction of the car's polluting emissions. Subaru says that the emissions coming out of the muffler can be cleaner than the ambient air found in some large cities. It is interesting to note that the Legacy station wagon, which is now offered in only two versions (PZEV and 2.5i), is no longer offered on the American market.