Subaru currently offers a Partial Zero Emissions Vehicle (PZEV) certified Legacy, Outback, Impreza, XV/Crosstrek and Forester models which are available for sale anywhere in the U.S. Subaru PZEV vehicles meet California's Super-Ultra-Low-Emission Vehicle exhaust emission standard. All other models have been certified LEV2.
Subaru has partnered with various manufacturers over time. Below are some of the models sold in Asia and Europe. In Japan they are in the Kei car class with either front or all wheel drive and a straight engine.
An article posted by Autoblog on April 16, 2008 stated that due to a corporate investment by Toyota, all Kei cars built by Subaru will be replaced by Daihatsu models beginning in 2010.