Nobody mentioned the fact that si's have rear disc brakes.

Just find one thats nice and swap it. It will be fast no matter what trim level you get but personally I like having a power sunroof. I am not out to build the ultimate racecar. I want a a car that performs well and also is comfortable as a daily driver. Also the power mirrors are good to have when some asshole pulls so close to your bumper that his headlights shine right in your eyes off of your mirrors.