I bought this car because it looks fantastic and is fun to drive. I know it's not as fast and/or doesn't handle as well as the WRX/GTI/Focus St etc etc, but that most certainly does not disqualify it from being a great value. I honestly think it looks better than the other cars mentioned, and a big reason is the re-styled front. The new 18" wheels also look great, I'm a huge fan. The interior is very nice as well, the touch screen radio works great, and the side view and rear view cameras are a huge help when driving. As far as performance, yes it could use a bump. Yes it looks faster than it is. But I don't even drive this car to it's limits, so I am not sure why I need more.
Overall the 2015 Civic SI is a great vehicle, I use it as my everyday driver commuting 30 miles daily. This is the first Honda I have ever owned and I fell in love as soon as I test drove the car. Because of the short shifts, the car definetely feels faster than it really is, but do not get me wrong I still think it is a little underpowered, but for what I paid for the car, it is something that I can live with. To me the sedan option seems like a no brainer since either way you still get the same power, and in the sedan you get a very comfortable backseat. The wheels are usually a love or hate thing and to me they are easy on the eyes.
I bought my 2015 Si sedan after hitting a patch of black ice in my 2015 Subary Legacy and crashing it. I chose to go back to Honda because of the interior comfort ( I had a 2007 Civic Si coupe, bought new, which had 140k miles on it, all original-trans, clutch, everything ). I chose the Subaru because of its all wheel drive and hoped for a quieter ride, but what I did not know at the time, is I prefer smaller cars with a lower ride height. The Legacy's high driver seats made it uncomfortable for me. My 2015 Si sedan has been an utter joy to drive. Its quick and I love revving the engine. I like how Honda took what they did good in my 2007 Civic and improved upon that formula. I'm a HUGE fan of the two-tier dashboard. I missed that funky dash when I had the generic dash in the Subaru.
My only gripes about the 2015 Civic are few: The center console armrest is rock hard, with absolutely NO padding on it whatsoever. I have had to resort to using a few small towels to give me some padding ( and am contemplating swapping out the Si's armrest with a 2015 EX-non Si-armrest ). My only other complaint about the car is it would be nice to see the fuel savings/ how many miles you have left in your gas tank, on the smaller screen to the right of the speedometer.
Other than that, I recommend the 2015 Civic Si sedan.
The car is amazing. It still turns heads a year later. In 2015 the Si was the best bang for your buck. 205 horsepower out of a naturally aspirated engine. While other cars in the class can put perform they are forced induction cars, the Si is not. They are also 4 grand more than the Civic Si. Which is the price you would pay for am aftermarket turbo.
The interior is really nice, it stands out. At first the red and black seats in a car that is neither red or black, didn't seem to fit, but I wouldn't change them for a different color. The steering is smooth, the shifter is smooth. Lane watch is amazing, more cars should have it. It helps prevent accidents I can see cars that I might have not seen otherwise.
Big plus, despite EPA rating, I averaged 39 mpg for the 15 days I had the car (which I apparently cannot say below in Car Details. Has a lot more technology than I needed or was accustomed to and obviously in 15 days, I was still getting use to the car. Totally awesome to never have to remove keys from pocket, bag, etc. That was great-no inadvertently dropping keys in hard to reach places (I had a 2006 Honda prior to getting this 2015). I can't honestly comment much more. At the 15 day ownership mark, at 12:30 PM I was nailed in an awkward rear/side position by a drunk driver. While the entire left side must be replaced :( and I don't know why the left-side air-bag did not deploy. Waiting to know if there is further damage, not visible without a lift. Otherwise, given that I was slowing to turn (guessing down to about 30 mph) and the other car was by witnesses' accounts speeding at minimally 70 mph, I sustained minor injuries most likely due to Honda's design of the passenger cabin.