When the Civic debuted in 1973, we were just coming out of the muscle-car era and the strangulation of the American V-8 had begun. Much unlike the V-8 engines of the era, the Civic’s 1,169-cc, inline-four engine produced only 50 ponies. In 1986, Honda ventured into the performance world with the Civic, as it introduced the performance-oriented Si hatchback. With 91 horsepower and 93 pound-feet in tow, the debut Civic Si could hit 60 mph in around 10 seconds and still deliver 30 mpg on the highway. The 2014 Civic Si Sedan has more than twice the power of its distant sibling, and delivers unexpected pop for a naturally aspirated model.