The Impreza WRX STi was built by Subaru.
Impreza WRX STi answers
When did Subaru stop making the Impreza WRX STi?
Subaru stopped production on the Impreza WRX STi in the 2006 model year. Subaru produced the Impreza WRX STi for 2 years.
What years did Subaru make the Impreza WRX STi?
The Subaru Impreza WRX STi was produced from 2004 to 2006.