2018 Honda Civic Si

in Sedans
2018 MODEL
$24,100 - $24,300 See Inventory Prices


Overall Rating



2018 Honda Civic Si Complete In-depth Review & Buying Guide

Honda Civic SI was first introduced as a hatchback in 2001 in the USA and was a hit in the country. Honda then redesigned the car as a Sedan. The 2018 Honda Civic SI is the third installment of the Civic series and once again Honda shows why they are considered as one of the best car manufacturers.

The 2018 Honda Civic SI Sedan is a car so brilliant, it could be renamed as Honda bargain. For a mere $24,100, you get unparalleled reliability and equipment on board. The sedan model is also extremely practical, as it gets great space inside, while still maintaining the modern, dynamic design.

See detailed review »


Exceptional handling and maneuverability

Supple ride Quality


Weak performance

The optional Tires are worse than the stock tires

What's New?

Updated Infotainment System

Lighter chassis


vehicle bio

base price



4dr Sedan

passenger capacity


top speed

137 mph



engine type


91 cu. in.


205 hp @ 5700 rpm


192 lb.-ft. @ 2100 rpm


6-speed manual


brake rotors (f/r)

11.1 in. ventilated front disc/12.3 in. solid disc brakes



106.3 in.


182.8 in.


70.8 in.


55.5 in.

curb weight

2906 lbs.

ground clearance

5.9 in.


passenger volume

95 cu ft.

cargo volume

14.7 cu ft.

towing capacity

4410 lbs.


zero to 60 mph

6.3 sec.

standing ¼-mile

14.8 sec.

braking (70-0 mph)

159 ft.

fuel economy


16/32/38 mpg

highway range

471.2 mi.


basic warranty

3 years/36000 miles

drivetrain warranty

5 years/60000 miles

corrosion warranty

5 years/unlimited

roadside assistance



 2018 Honda Civic Si in Lunar Silver Metallic color  2018 Honda Civic Si in Agean Blue color  2018 Honda Civic Si in Crystal Black Pearl color  2018 Honda Civic Si in Rallye Red color  2018 Honda Civic Si in White Orchid Pearl color
Lunar Silver Metallic

Vehicle images are guides only and may not reflect the model's exact specifications/features– exact specifications/features should be confirmed with the seller.






Fuel Economy










Trims and Configurations


 2018 Honda Civic Si Base


205 hp @ 5700 rpm
Premium unleaded (recommended)
32 combined

$24,100 - $24,300

Style Prices MPG Engine Transmission Drivetrain Seats Colors
4dr Sedan (1.5L 4cyl Turbo 6M) Starting at $24,100 MSRP (28 mpg/32 mpg/38 mpg) 205 hp @ 5700 rpm1.5I4premium unleaded (recommended)
See Full Specs
6-speed manual front wheel drive N/A
w/Summer Tires 4dr Sedan (1.5L 4cyl Turbo 6M) Starting at $24,300 MSRP (28 mpg/32 mpg/38 mpg) 205 hp @ 5700 rpm1.5I4premium unleaded (recommended)
See Full Specs
6-speed manual front wheel drive N/A

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2017 Honda Ridgeline

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2018 Honda Ridgeline

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2017 Honda CR-V

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2019 Honda Civic Coupe

Engine: 158 hp @ 6500 rpm2I-4

MPG: 29 combined

2018 Honda Civic Type-R

Engine: 306 hp @ 6500 rpm2I4

MPG: 25 mpg combined

2018 Honda Odyssey

Engine: 280 hp @ 6000 rpm3.5V6

MPG: 22 mpg combined

Expert Review

CARHP Editorial September 21, 2018


Overall Rating

2018 Honda Civic SI offers a 1.5 Liter 4-cylinder Turbocharged engine that produces 205 hp and 192 lb.-ft. of torque. The sedan model is also extremely practical, as it gets better space inside, while still maintaining a dynamic exterior design. The car is low on performance when compared to its rivals but considering the price of Civic SI, it offers premium features that are missing in some of its competitors.





Fuel Economy








2018 Honda Civic Si Features


2018 Honda Civic SI Sedan has only one trim available, which comes loaded with all the bells and whistles. It sports a 1.5 Liter 4-cylinder Turbocharged engine, that generates 205 hp and 192 lb.-ft. of torque on tap.

Trims Civic SI Sedan
MSRP $24,100
Features Fog lights
  Dual-zone automatic climate control
  Heated front seats
  Sport-tuned suspension with adaptive dampers
  Bigger front brakes
  Limited-slip front differential
  Unique rear spoiler, Si branded seats, a leather-wrapped steering wheel
  10-speaker stereo
  Unique instrument panel with faux carbon-fiber surfaces.

The best part about the Civic though is the equipment on offer, which includes everything from stereo to suspension. The Base trim, which is the only trim available, can be purchased at only $24,100, which is hugely impressive. You can also have summer tires for a mere $200.

We Recommend

There is only one trim on offer, and it gets an only optional upgrade. You can avail the upgrade, i.e., the summer tires, but they offer lower grip in exchange for better efficiency. Only bother with the upgrade if efficiency is your priority, as you’d need to change the tires as the season changes. 

2018 Honda Civic Si Engine


"It's hard to overstate how much we like the 2018 Honda Civic. Equipped with the turbocharged 1.5-liter four-cylinder engine, it's one of the best cars in its class for delivering both impressive acceleration and high fuel economy" -Edmunds.com

Engine and transmission

The 2018 Honda Civic Si Sedan runs on a 1.5 Liter 4-cylinder Turbocharged engine that churns out 205 hp and 192 lb.-ft. of torque. It is coupled to a 6 Speed Manual stick shift which, to be honest, is a million times more engaging to drive than any automatic transmission available in the market.

Models Honda Civic Si Sedan Subaru WRX VW Golf GTI Ford Focus ST
MSRP $24,100 $26,995 $25,595 $25,075
Engine 1.5L Turbo 4-cylinder 2.0L turbocharged Subaru Boxer 4-cylinder 2.0 L inline 4- cylinder, 16V, TSI 2.0L EcoBoost inline-4 cylinder
Transmission 6-Speed Manual 6-Speed Manual 6-Speed Manual 6-Speed Manual
Power 205 hp 268 hp 210 hp 252 hp
Torque 192 lb-ft 258 lb-ft 258 lb-ft 270 lb-ft

The Honda loses out to the competition in terms of engine power and torque, as it has the smallest engine on offer. Subaru WRX and Ford Focus ST are the performance-oriented cars in this segment, with each offering power above 250 hp. The Polo GTI is barely ahead of the Honda in terms of power but has a lot more torque on offer. All the cars are mated to 6-speed manual transmission.


Talking about acceleration, the 1.5 Liter engine of the Civic SI lacks the punch that you’d expect a sports sedan to offer. The 2018 Honda Civic SI loses out on engine power, and this reflects on its performance. The car takes a lazy 6.7 seconds to reach 60 mph, while quarter mile takes exactly 15 seconds. Those numbers are extremely disappointing for a turbocharged Japanese sedan.

Models Honda Civic Si Sedan Subaru WRX VW Golf GTI Ford Focus ST
0-60 MPH 6.7 sec 5.5 sec 5.9 sec 6.0 sec
Quarter mile 15.0 sec 14.2 sec 14.6 sec 14.6 sec
Engine 1.5L 2.0L 2.0L 2.0L
Emission (Tons/yr. of CO2 Emissions @ 15K mi/year) 5.5 7.6 6.3 7.1

The Subaru WRX is the best performer in this segment and takes only 5.5 seconds to reach 60 mph. The Golf and the Focus have virtually the same acceleration times, nearly seconds to 60 and 14.6 to a quarter mile. In real conditions, however, the difference in performance might not feel as pronounced, especially when negotiating traffic.

Braking and Handling

Braking duties on the 2018 Honda Civic Si Sedan are handled by discs up front and the rear. The Honda is also the lightest car in this comparison, although sadly, that doesn’t equate to the best braking performance, even though the car manages just fine.

In terms of handing, the Civic is a beast, with little to no body roll and a quick, responsive steering that gives you loads of feedback. The sedan is let down by the tires, which have low rolling resistance for better efficiency and less road noise. The Civic SI handles just the way it’s expected to be, better than the standard Civic, and not as good as the Type-R.

Model Honda Civic Si Sedan Subaru WRX VW Golf GTI Ford Focus ST
Brake Front(in) 12.3 12.4 12.3 12.6
Brake Rear(in) 11.1 11.3 10.7 10.7
Curb weight(lbs.) 2906 3272 3031 3223
60-0 MPH (ft.) 123 113 100 111

The competition isn’t far behind and actually performs better in terms of braking. Every car in this comparison beats the 2018 Honda Civic SI in braking in spite of being heavier than the SI sedan. As for handling, all of these cars are almost equally matched, although the WRX has a little body roll, the GTI feels a bit too stiff, and the Focus feels just about right.

2018 Honda Civic Si Fuel Economy


The biggest advantage the 2018 Honda Civic SI got by easing off of the performance is the increased fuel economy. With a light foot on the throttle, the car manages to run for 28 miles on a single gallon of gas. Out on the highway, the figure rises to about 38 miles per gallon, thus bringing the overall efficiency to 32 mpg.

Model Honda Civic Si Sedan Subaru WRX VW Golf GTI Ford Focus ST
MPG (city) 28 21 24 22
MPG (highway) 38 27 34 30
MPG (combined) 32 23 28 25

The Golf is the second most fuel-efficient car among the competition, managing an overall efficiency of 28 mpg, not as great as the Civic, but impressive nonetheless. The Subaru and the Ford fall behind here, managing 23 mpg and 25 mpg in the city respectively.

2018 Honda Civic Si Interior


"The Civic delivers a large, versatile cabin for both people and their things, with good rear legroom and clever storage solutions. The easy-to-use interior control layout is marred by terrible touch-sensitive audio volume and tuning controls and a poorly optimized touchscreen interface" -Edmunds.com

Seating and Comfort

The 2018 Honda Civic SI is just as sporty on the inside as it is outside. The front seats of the standard Civic are replaced by bolstered seats with S written in red on them. There are also red stitching on the door panels, steering wheel, and the gear knob (which is wrapped in leather).

The Honda seats 5, as expected, and does so with ease. The dimensions, although small on the outside, are extremely spacious on the inside. The A and C pillar are quite thin too, adding to the feeling of roominess inside the car. The suspension also works really hard to provide the best ride quality available.

Model Honda Civic Si Sedan Subaru WRX VW Golf GTI Ford Focus ST
Passenger capacity 5 5 5 5
Passenger Volume (ft. cube) 95 96.6 93.5 90.7
Front (Head/Shoulder/Leg) (In.) 37.5/56.9/42.3 39.8/55.6/43.3 38.5/55.9/41.2 39.1/55.6/33.4
Second (Head/Shoulder/Leg) (In.) 36.8/55/37.4 37.1/54.2/35.4 38.1/53.9/35.9 37.9/52.6/33.4

Interior space is nearly similar in this comparison, although the Ford and the Volkswagen feel cramped at times. This isn’t a really big issue though, as all the cars here can seat 4 passengers in comfort and 5 in relative comfort.


The driver has access to the nice and impressive infotainment system via the center console. The 7-inch infotainment fits in landscape and is easily accessible to the driver. The screen is bright and crisp but shows lag sometimes. Standard infotainment features include

  • Bluetooth
  • Apple CarPlay,
  • Android Auto
  • Voice recognition capabilities.
  • A 450 Watt 10-speaker sound system

Cargo volume

As much as the Civic impresses, it also lets you down on certain counts. The cargo space is the biggest disappointment about the little Honda, as it manages only 14.7 cubic feet of cargo space. The primary reason for it is the sloping roofline, which eats into the boot space.

Model Honda Civic Si Sedan Subaru WRX VW Golf GTI Ford Focus ST
Trunk volume (ft. cube) 14.7 12.0 23 23.8

With 23.8 cubic feet of space, the Ford Focus ST offers the best cargo space amongst its competitors. The Volkswagen Golf GTI with the cargo space of 23 cubic-feet just loses out to the Focus ST. 2018 Subaru WRX has the worst cargo capacity.

2018 Honda Civic Si Exterior


"At least the Civic Si is effective at announcing itself to fanboys. Compared with the wild stylings of the Civic Type R, however, the Si is positively restrained" -Caranddriver.com

Dimensions and weight

As we just told above, the 2018 Honda Civic SI is the lightest car of the present bunch. With a curb weight of 2906 pounds (with a full tank of fuel and all other fluids), the car is quite light. It is also quite compact on the outside, which makes it easier to weave to and fro in some tight corners. The large wheelbase also ensures enough space inside the cabin.

The ground clearance, although best in class, does not inspire confidence once you turn off-road. But seeing as the Civic isn’t built for off-roading, it would do just fine. Not even on the biggest speed breaker will the Civic scrape its underbelly.

Model Honda Civic Si Sedan Subaru WRX VW Golf GTI Ford Focus ST
curb weight (lbs.) 2906 3272 3031 3223
Length (in) 182.8 180.9 168.0 171.7
Width(in) 70.8 70.7 70.8 71.7
Height(in) 55.5 58.1 56.8 58.4
Ground clearance(in) 5.9 4.9 5.0 5.7
Wheelbase(in) 106.3 104.3 103.6 104.3
Track width(in) F/R 60.5/61.2 60.2/60.6 60.6/59.6 61.2/60.4

The competition is heavier than the Civic but also smaller, with all the cars having less length, ground clearance, and wheelbase than the Honda. The Golf, especially, is quite a bit smaller than the others in this comparison. The Subaru WRX is the heaviest of the lot, with more than 300 pounds weight disadvantage over the Civic.

2018 Honda Civic Si Safety


The Honda Civic Si Sedan gets a plethora of safety equipment to keep the passengers safe while driving it. The National Highway Traffic Safety Administration has not rated the car yet but has got excellent IIHS ratings. These safety features are mentioned below:

  • Vehicle Stability Assist (VSA) with Traction Control
  • Anti-Lock Braking System (ABS)
  • Electronic Brake Distribution (EBD)
  • Multi-Angle Rearview Camera with Dynamic Guidelines
  • Tire Pressure Monitoring System (TPMS)
  • LED Daytime Running Lights (DRL)
  • Advanced Compatibility Engineering (ACE) Body Structure
  • Advanced Front Airbags (i-SRS)
  • Smart Vent Front Side Airbags
  • Side Curtain Airbags
  • Rollover Sensor
  • 3-Point Seat Belts at all Seating Positions
  • Lower Anchors and Tethers for Children (LATCH)

IIHS Ratings

The IIHS Rating for the Civic are as follows


Small overlap front driver side


Small overlap front passenger side


Moderate overlap front


Head restraints & seats



Crash prevention and mitigation
Front Crash Prevention






2018 Honda Civic Si Competition

Subaru WRX vs Honda Civic SI

Even though the Civic was introduced to the world way before the WRX, today, they have ended up in direct competition with each other. The Subaru WRX is the performance car of this comparison but doesn’t offer as much value for your money as the Civic. It has a bigger engine, more power, and more prestige than the Civic, due to its rally heritage, but it is also quite a bit more expensive and relatively poorly equipped. 

VW Golf GTI vs Honda Civic SI

The Volkswagen Golf was the original hot hatch in the 90s and still holds up the reputation quite well. The Golf is a typical example of German engineering and offers the usual combination of superb build quality and premium feel. The brand value is also greater, which directly translates into better resale value than its competitors.

The Civic, however, has one advantage big over the Golf, and that is the driving feel of the car. Also, Japanese manufacturing is the only thing in the world that can rival German engineering.

Ford Focus ST vs Honda Civic SI

The Ford Focus ST is a very exciting car to drive in its RS form, certainly amongst the best. The ST is the tame younger brother of the RS, who is just good enough at its job. The EcoBoost engine is great, although the chassis is capable of handling much more power and thus feels slower than it actually is.

Although the Civic has the same story, with the Type-R Civic being the one bigger and better model, still, the Civic SI never feels like a compromise. It is also a better deal than the Focus ST due to its pricing and equipment.

2018 Honda Civic Si Final Verdict

The Honda Civic Si Sedan is a great car, fun to drive, easy on the pocket, and offers a lot of value for the money. It is a bargain of a car, and if you are in the market for a cheap commuter that is also exciting to drive, then no other cars fit the bill better than the Civic Si.

The Civic Si finds the perfect middle ground between the no-thrills-offered base Civic and the racetrack worthy Type-R. It offers excellent handling, wonderful ride, great efficiency, and is also very safe. The 2018 Honda Civic Si Sedan is the car you should definitely consider to buy.