Recognized as the performance-leading model of Hondas compact car in North America, the Civic Si line was introduced to the United States in 1985. First attached to the CRX fastback, the Honda Civic Si trim would later be found with the hatchback and coupe body styles. In 2002, the Honda Civic Si was offered only with a three-door hatchback body style.
Fitted with the base engine found in the Acura RSX, the i-VTEC 2.0-liter four-cylinder produced 160 horsepower and 132 pound-feet of torque. The only transmission choice for the 2005 Honda Civic Si was a five-speed manual gearbox. The sport-themed model in the Honda Civic line, the 2005 Si came with 16-inch alloy wheels, four-wheel disc brakes, leather-wrapped steering wheel and moonroof.
Coinciding with the eighth-generation redesign of the base Honda Civic, an all-new Civic Si was spawned. In 2006, the Honda Civic Si package returned to the confines of a sporty two-door coupe. This reintroduction of the Honda Civic Si as a coupe allowed the vehicle to grow longer and wider than its 2005 counterpart. Powered by more potent 197-horsepower 2.0-liter engine, the 2006 Civic Sis propulsion was coupled with a six-speed manual transmission and a limited-slip differential.
Honda rated acceleration from 0 to 60 miles per hour at 6.7 seconds. 17-inch wheels with Michelin tires as well as a seven-speaker audio system were also found standard on the 2006 Honda Civic Si. For 2007, the Honda Civic Si line-up was expanded to include the four-door sedan body style. In the same year, Vehicle Stability Assist (VSA) was added for improved traction. The Si trim level continued to play the role as the sport compact model of the Civic coupe and sedan beyond 2007.
Now available as a sedan in addition to the coupe, the 2007 Honda Civic Si is a performance version of the standard Civic and is powered by a 197 hp 2.0L four-cylinder engine mated to a six-speed manual transmission.