The Honda Civic Si is a sport compact / hot hatch version of the Civic built by the Japanese automaker Honda. The Si (Sport Injected) trim was introduced for the third generation of Honda Civics in both Japan and North America. In Canada the trim became known as the SiR for the sixth and seventh generations, and the Si trim was equivalent to the USDM EX model.
For the Japanese and European markets, the Civic Type R was adopted as the high-performance variant of the Civic, starting with the EK9 hatch for Japan in 1996 and then with the EP3 hatch for Europe in 2001. In North America the Type R name has never been used for Civics, and the Si/SiR badge continues to signify the highest performance trim. The Civic Si contrasts with the more track-oriented and spartan Type R, which has less sound deadening and amenities in return for better performance, and has been positioned as more of a full-featured sport trim, featuring luxury options such as a sunroof and a seven speaker audio system.