Honda displayed a Civic Si concept in Chicago, calling it a "strong indication of the styling and performance direction for an all-new production Civic Si" that will make its real-world debut at SEMA in November. A sneak peek of the sixth-generation Si, the concept features the latest generation of "intelligent" I-VTEC technology, as well as a 200-horsepower, 16-valve DOHC engine mated to a close-ratio six-speed manual transmission. A helical-type limited-slip differential helps improve launch traction and cornering performance, and 18-inch cast-aluminum wheels wrapped in 225/40R18 tires and four-wheel disc brakes with cross-drilled rotors and four-piston Brembo calipers improve handling. "The 2006 Civic Si Coupe will be the most powerful, fastest, and fun-to-drive Si we've ever put on the street and the Civic Si concept sets the direction in terms of its styling, package, and performance," says John Mandel, Senior Vice President of American Honda. The 2006 Civic lineup will include a sedan and coupe, as well as fuel-efficient Hybrid and natural-gas powertrains when it comes to market in the fall. Click here to view a full photo gallery. Or, click to watch the 2006 Honda Civic Si video.