Compare the2023 Honda Civic SiVS 2023 Toyota GR Corolla

For enhanced safety, the front and rear seat shoulder belts of the Honda Civic Si have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Toyota GR Corolla doesn’t offer pretensioners for its rear seat belts.

The Honda Civic Si has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The GR Corolla doesn’t offer a front passenger side knee airbag.

Using vehicle speed sensors and seat sensors, smart airbags in the Civic Si deploy with different levels of force or don’t deploy at all to help better protect passengers of all sizes in different collisions. The Civic Si’s side airbags will shut off if a child is leaning against the door. The GR Corolla’s side airbags don’t have smart features and will always deploy full force.

The Civic Si’s driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The GR Corolla doesn’t offer a driver alert monitor.

Both the Civic Si and the GR Corolla have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras and rear cross-path warning.

On the EPA test cycle the Civic Si gets better fuel mileage than the GR Corolla 1.6 turbo 3-cylinder (27 city/37 hwy vs. 21 city/28 hwy).

To lower fuel costs and make buying fuel easier, the Honda Civic Si uses regular unleaded gasoline (premium recommended for maximum performance). The GR Corolla requires premium, which can cost 20 to 55 cents more per gallon.

The Civic Si has a standard cap-less fueling system. The fuel filler is automatically opened when the fuel nozzle is inserted and automatically closed when it’s removed. This eliminates the need to unscrew and replace the cap and it reduces fuel evaporation, which causes pollution. The GR Corolla doesn’t offer a cap-less fueling system.

The Civic Si stops much shorter than the GR Corolla:

For a smoother ride and more stable handling, the Civic Si’s wheelbase is 3.8 inches longer than on the GR Corolla (107.7 inches vs. 103.9 inches).

The Civic Si handles at .97 G’s, while the GR Corolla Circuit Edition pulls only .94 G’s of cornering force in a Car and Driver skidpad test.

The Honda Civic Si may be more efficient, handle and accelerate better because it weighs about 250 to 350 pounds less than the Toyota GR Corolla.

Because it has more passenger and cargo room, the EPA rates the Civic Si a Mid-size car, while the GR Corolla is rated a Compact.

The Civic Si has 12 cubic feet more passenger volume than the GR Corolla (96.6 vs. 84.6).

The Civic Si has .3 inches more front legroom, .4 inches more front hip room, 3.1 inches more front shoulder room, 7.5 inches more rear legroom, 3.4 inches more rear hip room and 1.5 inches more rear shoulder room than the GR Corolla.

The Civic Si’s standard rear seats fold to accommodate long and bulky cargo. The GR Corolla Morizo Edition doesn’t offer folding rear seats.

The Civic Si’s power parking brake sets with one touch and releases with one touch or automatically. The GR Corolla has a lever-type parking brake that has to be strenuously raised to engage properly. It has to be lifted up more and a button depressed to release it.

The Civic Si’s speed-sensitive wipers speed up when the vehicle does, so that the driver doesn’t have to continually adjust the speed of the wipers. The GR Corolla’s manually variable intermittent wipers have to be constantly adjusted.

The Civic Si’s standard outside mirrors include heating elements to clear off the mirrors for better visibility. The GR Corolla doesn’t offer heated side mirrors.

The Civic Si has a standard center folding armrest for the driver and front passenger. A center armrest helps combat driver fatigue. The GR Corolla doesn’t offer a front seat center armrest.

The Civic Si has a standard center folding armrest for the rear passengers. A center armrest helps make rear passengers more comfortable and it can provide a boundary between children. The GR Corolla Morizo Edition doesn’t offer a rear seat center armrest.

Consumer Reports® recommends the Honda Civic Si, based on reliability, safety and performance.

The Civic Sport was chosen as one of Car and Driver’s “Top Ten” for 2 of the last 5 years. The GR Corolla has never been a Car and Driver “Top Ten” pick.

The Civic Si was chosen as one of Automobile Magazine’s “All Stars” for 2 of the last 26 years. The GR Corolla has never been an “All Star.”

A group of representative automotive journalists from North America selected the Civic Si as the 2016 North American Car of the Year. The GR Corolla has never been chosen.