Snappy, swift, sharp, and speedy, the Civic Si is a sport compact model of the immensely popular Honda Civic. Introduced in 1973, the Honda Civic quickly became a best seller. With a reputation as an incredibly hardy and reliable vehicle, the Civic was originally a small subcompact car, but many changes were implemented to comply with consumer demand. The vehicle grew larger and more upmarket over the years, and in 1984 the first Honda Civic Si was released, appealing to Honda users that wished to own a Civic with a little more panache. These Civic Si models housed a larger DOHC engine capable of propelling the car to hit speeds in excess of 120 mph. Needless to say, the new supercharged Civic Si proved popular with racing enthusiasts and muscle car fans alike. The Si has been through several changes since, with modern incarnations of the car having several luxury features as standard. For example, the 2006 Civic Si wheels feature 17-inch alloys and Michelin all-season tires, while the chassis has been lowered slightly for better aerodynamics and improved traction and handling. No matter what model Civic Si you are seeking, from the earliest versions down to the newest releases, you are sure to find a huge selection of quality new and used cars from reputable sellers on eBay.