Think of the Si as the Civic that pounded a Red Bull. It’s the choice for shoppers who crave an engaged driving experience but don’t want to break the budget or sacrifice fuel economy.

Available as a sedan or coupe, the Si is a sporty offshoot of its more mainstream sibling, with a beefed-up powertrain and reinforced suspension.

The handling shines, with limited body roll and good grip when driven through sharp turns. The ride is stiff and edgy but not overly punishing.


The Si’s heart is a 205-hp turbo four-cylinder, similar to the engine used in the Civic EX-T trim. But Honda squeezed out 31 more horsepower through aggressive turbo tuning.

While its acceleration isn’t quicker than the EX-T’s, the Si feels more responsive. Fuel economy is also better, at 34 mpg overall. The Si comes only with a six-speed manual transmission, with crisp action and short throws.

Getting into this low-slung car is a challenge. Once inside, drivers will find that the seat hugs them just right but lacks lumbar adjustment.

The controls are similar to those found in the mainstream Civic models—with the same frustrations, including an infotainment system that has a convoluted menu structure and slow-responding touch screen, which make it fussy to use.

Unfortunately, forward-collision warning and automatic emergency braking aren’t available on the Si.

Read the complete Honda Civic Si road test.

2018 Honda Civic Si Review

HIGHS: Handling, braking, fuel economy, value
LOWS: Ride, controls, access, no advanced safety features offered
POWERTRAIN: 205-hp, 1.5-liter four-cylinder turbocharged engine; 6-speed manual transmission; front-wheel drive
FUEL: 34 mpg on premium gas

Editor's Note: This article also appeared in the January 2018 issue of Consumer Reports magazine.