There is no denying the overall excellence of the 2017 Honda Civic Si. There just isn’t. Adopting as it has the boldly styled forms of Honda’s 10th-generation Civic sedan and coupe, the new Si starts out with a darn good foundation. And none of the Si additions—a 205-hp turbocharged 1.5-liter engine, a short-throw shifter for the six-speed manual gearbox, a helical-gear limited-slip differential, 18-inch wheels, and a healthy list of interior and exterior upgrades that are fully detailed here—are going to muck things up.