How much is my car worth? 2000 CIVIC SIR?

I am going to be selling my car soon, it is is very good condition, 185000kms, DOHC V-TEC 1.6L, tint, power locks, power windows, rear spoiler, ac, cd, am/fm stereo, alloy rims, cruise, bucket seats, anti-theft, after market stereo, fairly new brakes, new tires, power sunroof, silver exterior, cloth interior, 2 dr coupe, the model is loaded and rare. I do not want to sell, but need something a little more practical, since they are rare I am having trouble deciding how much to sell for.