The Civic comes in sedan or coupe. It has four trims: DX, LX, EX and Si. All but the Si trim come with a 140-horsepower, 1.8-liter inline four-cylinder with a standard five-speed manual transmission with an optional five-speed automatic. A performance-oriented coupe and new sedan, the Si, comes with a 197-horsepower, 2.0-liter inline-4 fitted with a six-speed manual. Safety features include antilock brakes, front and side-impact airbags as standard equipment.For 2007, the Honda Civic introduces a tuned sedan Si to its lineup.