Subaru Tecnica International, or STi is Subaru's motorsports division, similar to RalliArt for Mitsubishi and TRD for Toyota. STi specializes in the preparation of a variety of vehicles for rallies such as the World Rally Championship (WRC). It was founded in 1998 by Subaru to promote the company identity. In recent years, the WRC has been predominantly won by the heavily modified STi 555 Impreza, beating many of its rivals such as the Mitsubishi Lancer Evolution. STi is an acronym for Subaru Tecnica International, most people misspell Tecnica with Technica.
The Subaru Impreza WRX also comes in a high performance STi edition, designed by STi.
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