First introduced in 2007 a year after the Civic platform was redesigned, the Civic Si has since received a only a hanful of minor updates, including revised wheels, headlamps, grilles and fog lamps.
Unlike its predecessors, the Si was made available in sedan form rather than only as a coupe. Slightly heavier than the two-door, the sedan shares the bulk of its mechanical and cosmetic features with its cousin.
Visually almost identical(which is not goot) to the standard Civic, the Si receives a special body kit and a rear spoiler, in addition to standard 17-inch alloy wheels (versus 15 or 16-inch wheels on other Civics). Equipped more or less like the Civic EX, the Si comes standard with a full array of power accessories, a moonroof, an AM/FM/CD audio system with an auxiliary input jack and a split-folding rear seat
The Civic Si's interior also doesn't deviate substantially from the EX, though it adds unique seats and upholstery, a sportier leather-wrapped steering wheel with radio controls, unique gauges and sports pedals. Otherwise, it follows the same space-age dashboard style that characterizes the rest of the Civic lineup.
Performance upgrades start with a sport suspension, a helical limited-slip front differential and uprated four-wheel disc brakes and a six-speed manual (one extra cog over the regular Civic) and top out with an extra 57 horsepower from the enlarged four-cylinder engine.
The 197-horse total approaches the coveted 100 horsepower per liter mark for the 2.0-liter, dual-overhead cam four-cylinder engine. That peak horsepower is achieved at a high 7,800 rpm, meaning drivers can expect to rev the Civic Si heavily to get the most out of its powertrain. Peak torque, at 139 lb-ft., is realized at an also-high 6,100 rpm. Tested performance 0-60mph 7 seconds flat.
No automatic transmission is available on the Civic Si. Only a 6 speed manual.
There are no factory options for the Civic Si; rather, the Japanese automaker offers the Civic in several packages that include high-performance summer tires (in place of all-season treads), a navigation system with Bluetooth capability, or a combination of the two.
image source Edmunds