Identical to the Si coupe, the Si Sedan has a major improvement in the engine going from the 1.8L SOHC to a 2.0L K20 DOHC i-VTEC which delivers 197 HP at 7800 RPM. Wheels are 17" allow up from 16" in the non-Si. The transmission moves from a 5-speed to 6-speed manual with no automatic option.
The extra room that a sedan brings doesn't compromise this car's performance compared to the smaller Si Coupe as the Sedan weighs only 60 pounds more.
The Si model comes with all the features that the EX version of the normal Civic offers, including all the standard safety features of side airbags, and anti-lock brakes. A 350 watt 7-speaker sound system is included that is XM radio ready, but requires an extra charge for subscription. Sticker summer tires and a satellite navigation system are also optional additions that up the cost over the base model.
Improved sport performance comes at the price of fuel efficiency as the Si model gets 23MPG for city driving and 31MPG on highway, compared to 30/40 for the non-Si sedan.
