Honda Civic Si spotted looking sporty but mature

Up front, we see a fascia that's more aggressive than the standard Civic Coupe, with large, angular depressions flanking a central air intake. We're wondering what exactly all that tape is hiding on its face. There's a cooling element behind the lower intake, which is probably an intercooler for the 2.0-liter, turbocharged four-cylinder engine. Rumors suggest a power output of around 230 horsepower.

One unique styling element that's plainly visible on this Si mule is a single large exhaust opening sprouting from under the rear bumper. Its central location is similar to that of the Type R that we've seen in spy shots, but instead of three outlets, there's just one. It's a pretty cool look, and we're excited to hear how it sounds. There's no spoiler on this mule, but we wouldn't be surprised to see an optional unit on the production model.

Inside, there's a six-speed manual transmission and red stitching on the seats and steering wheel. Those seats look to have pretty substantial bolsters. There's carbon fiber trim on the dash and alcantara fabric on the doors.

We've got 28 images of this Si mule, showing it from just about every angle. Scroll through our high-res gallery above and let us know what you think. The next Civic Si will probably go on sale in 2017, which means it'll make a debut either late this year in LA or early next year in Detroit. Stay tuned.