2018 Honda Civic Si vs. EX
iSeeCars' unbiased and data-driven comparison of the 2018 Honda Civic Si and 2018 Honda Civic EX contrasts the two cars across a broad spectrum of vehicle specifications to determine which car is better. In addition to comparing pricing and specs, iSeeCars uses all the ratings, rankings, and insights from its comprehensive analyses of each vehicle model, including calculations of reliability, safety, depreciation, value retention, and the vehicle's projected lifetime recalls (based on analyzing over 25 billion data points). This in-depth evaluation is used to identify which vehicle represents a better overall choice for shoppers who are considering both the 2018 Honda Civic Si and the 2018 Honda Civic EX.
When we compare the 2018 Honda Civic Si's and the 2018 Honda Civic EX's specifications and ratings, the 2018 Honda Civic Si has the advantage in the area of base engine power. The 2018 Honda Civic EX has the advantage in the areas of typical lower range of pricing for used cars, and fuel efficiency. The 2018 Honda Civic Si and 2018 Honda Civic EX have the same interior volume, overall quality score Based on this comparison of the 2018 Honda Civic Si's and the 2018 Honda Civic EX's specifications and ratings, the 2018 Honda Civic EX is a better car than the 2018 Honda Civic Si.
Pricing: A used 2018 Honda Civic Si ranges from $16,993 to $25,000 while a used 2018 Honda Civic EX is priced between $14,085 to $22,496.
Resale/Retained Value: Looking at the 5-year depreciation rate, the 2018 Honda Civic Si and the 2018 Honda Civic EX both lose 23.5 percent of their value.
Quality Rating: The iSeeCars Overall Quality rating for the Honda Civic is 9.0 out of 10. Honda Civic is ranked 5 out of 43 Best Small Cars based on its reliability, retained value, and safety ratings.
Reliability Rating: iSeeCars' Reliability Rating for the Honda Civic is 8.8 out of 10.
Engine Power and Fuel Efficiency Comparison: For engine performance, the 2018 Honda Civic Si’s base engine makes 205 horsepower, and the 2018 Honda Civic EX base engine makes 158 horsepower. The Si is rated to deliver an average of 32 miles per gallon, with a highway range of 471 miles. The EX is rated to deliver an average of 34 miles per gallon, with a highway range of 496 miles. This gives the 2018 Honda Civic EX the fuel efficiency and maximum range advantage over the 2018 Honda Civic Si. The Si uses premium unleaded, and the EX uses regular unleaded.
Safety Ratings: The Honda Civic has an average safety rating of 5 out of 5 Stars based on NHTSA's crash test ratings.
New Car Pricing
Asking Price:
-
Starting MSRP:
$24,100
Category Avg Starting MSRP:
(Compact Cars)
$20,571
Category Starting MSRP Range:
(Compact Cars)
$14,395 - $39,785
New Car Pricing
Asking Price:
-
Starting MSRP:
$21,340
Category Avg Starting MSRP:
(Compact Cars)
$20,571
Category Starting MSRP Range:
(Compact Cars)
$14,395 - $39,785
Used Car Pricing
Avg Used Car Price:
$21,385
Price Range:
$16,993 - $25,000
Category Avg Price:
(Compact Cars)
$17,195
Category Avg Price Range:
(Compact Cars)
$9,985 - $30,573
# Used Cars for Sale Nationally:
153
Avg Mileage of Used Cars for Sale:
84,855
# Good or Great Deals:
60
Used Car Pricing
Avg Used Car Price:
$18,319
Price Range:
$14,085 - $22,496
Category Avg Price:
(Compact Cars)
$17,195
Category Avg Price Range:
(Compact Cars)
$9,985 - $30,573
# Used Cars for Sale Nationally:
302
Avg Mileage of Used Cars for Sale:
79,252
# Good or Great Deals:
141
Honda Civic Scores & Rankings
Overall Score:
9.0 / 10
Reliability:
8.8 / 10
Retained Value:
9.0 / 10
Safety:
9.0 / 10
Honda Civic Scores & Rankings
Overall Score:
9.0 / 10
Reliability:
8.8 / 10
Retained Value:
9.0 / 10
Safety:
9.0 / 10
iSeeCars Reliability Insights for 2018 Honda Civic Si
Remaining Life Expectancy (years):
7
Typical Category Remaining Life Expectancy:
(Compact Cars)
5.2
Category Remaining Life Expectancy Range:
(Compact Cars)
3.1 - 8.5
Chance of Reaching 200k Miles for a New Car:
42.7%
iSeeCars Reliability Insights for 2018 Honda Civic EX
Remaining Life Expectancy (years):
7
Typical Category Remaining Life Expectancy:
(Compact Cars)
5.2
Category Remaining Life Expectancy Range:
(Compact Cars)
3.1 - 8.5
Chance of Reaching 200k Miles for a New Car:
42.7%
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
16.9
Typical Category Recalls:
(Compact Cars)
4.1
Category Range for Recalls:
(Compact Cars)
0.5 - 16.6
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
16.9
Typical Category Recalls:
(Compact Cars)
4.1
Category Range for Recalls:
(Compact Cars)
0.5 - 16.6
Honda Civic Rankings
Ranking
2 out of / 43Ranking
3 out of / 43Ranking
3 out of / 13Ranking
3 out of / 5Ranking
4 out of / 43Ranking
4 out of / 21Ranking
5 out of / 43Ranking
5 out of / 43Ranking
6 out of / 43Ranking
7 out of / 43Ranking
7 out of / 13Ranking
12 out of / 43Ranking
14 out of / 24Ranking
17 out of / 43Ranking
23 out of / 43Honda Civic Rankings
Ranking
2 out of / 43Ranking
3 out of / 43Ranking
3 out of / 13Ranking
3 out of / 5Ranking
4 out of / 43Ranking
4 out of / 21Ranking
5 out of / 43Ranking
5 out of / 43Ranking
6 out of / 43Ranking
7 out of / 43Ranking
7 out of / 13Ranking
12 out of / 43Ranking
14 out of / 24Ranking
17 out of / 43Ranking
23 out of / 43Available Body Styles
Coupe, Sedan
Available Body Styles
Hatchback, Sedan
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
Other Honda Civic Trim Levels
EX, EX w/Honda Sensing, EX-L, EX-L w/Honda Sensing, EX-L w/Navi, EX-T, EX-T w/Honda Sensing, LX, LX w/Honda Sensing, Si w/Summer Tires, Touring
Other Honda Civic Trim Levels
EX w/Honda Sensing, EX-L, EX-L w/Honda Sensing, EX-L w/Navi, EX-T, EX-T w/Honda Sensing, LX, LX w/Honda Sensing, Si, Si w/Summer Tires, Touring
Warranty Information
Warranty, Bumper-to-Bumper:
3 years / 36000 miles
Warranty, Powertrain:
5 years / 60000 miles
Warranty, Roadside Assistance:
3 years / 36000 miles
Warranty Information
Warranty, Bumper-to-Bumper:
3 years / 36000 miles
Warranty, Powertrain:
5 years / 60000 miles
Warranty, Roadside Assistance:
3 years / 36000 miles
Safety Ratings
NHTSA Safety Rating (last 5 year average):
5 out of 5 Stars
2025 NHTSA Overall Rating:
5 out of 5 Stars
2025 NHTSA Front Crash Overall Rating:
5 out of 5 Stars
2025 NHTSA Side Crash Overall Rating:
5 out of 5 Stars
2025 NHTSA Rollover Rating:
5 out of 5 Stars
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
5 out of 5 Stars
2025 NHTSA Overall Rating:
5 out of 5 Stars
2025 NHTSA Front Crash Overall Rating:
5 out of 5 Stars
2025 NHTSA Side Crash Overall Rating:
5 out of 5 Stars
2025 NHTSA Rollover Rating:
5 out of 5 Stars
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
Horsepower:
205 hp @ 5700 rpm
Torque:
192 foot-lbs @ 2100 rpm
Power-to-Weight Ratio (higher is better):
0.071 hp per pound
Base Drivetrain Specs
Horsepower:
158 hp @ 6500 rpm
Torque:
138 foot-lbs @ 4200 rpm
Power-to-Weight Ratio (higher is better):
0.057 hp per pound
Engine Specifications
Engine Size:
1.5 liters
Engine Configuration:
Inline
Number of Cylinders:
4
Transmission:
Manual
Standard/Optional Drivetrain Type:
FWD
EPA Fuel Economy
(City/Highway/Combined MPG):
28 / 38 / 32
Range (city/hwy):
347 / 471 miles
Recommended Fuel Type:
Premium Unleaded
Engine Specifications
Engine Size:
2 liters
Engine Configuration:
Inline
Number of Cylinders:
4
Transmission:
Continuously Variable Transmission (CVT Automatic)
Standard/Optional Drivetrain Type:
FWD
EPA Fuel Economy
(City/Highway/Combined MPG):
31 / 40 / 34
Range (city/hwy):
384 / 496 miles
Recommended Fuel Type:
Regular Unleaded
Standard/Optional Features
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Internet Radio:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Power outlet:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Wireless Smartphone Charging:
Available
Adaptive Cruise Control:
N/A
Air Suspension:
N/A
Automatic Parking:
N/A
Captain's seat:
N/A
Cooled/Ventilated Seats:
N/A
Front Bench Seats:
N/A
Heated Steering Wheel:
N/A
Leather Upholstery:
N/A
Massage Seats:
N/A
Navigation System:
N/A
Paddle Shifters:
N/A
Panoramic Sunroof/Moonroof
N/A
Parking Sensors:
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Roadside assistance:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Voice Recognition:
N/A
Wifi:
N/A
Standard/Optional Features
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
N/A
Internet Radio:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Power outlet:
Standard
Satellite radio:
Standard
Sunroof/Moonroof:
Standard
Wireless Smartphone Charging:
Available
Adaptive Cruise Control:
N/A
Air Suspension:
N/A
Automatic Parking:
N/A
Captain's seat:
N/A
Cooled/Ventilated Seats:
N/A
Front Bench Seats:
N/A
Heated Steering Wheel:
N/A
Leather Upholstery:
N/A
Massage Seats:
N/A
Navigation System:
N/A
Paddle Shifters:
N/A
Panoramic Sunroof/Moonroof
N/A
Parking Sensors:
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Roadside assistance:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Voice Recognition:
N/A
Wifi:
N/A
Safety Features
Backup camera:
Standard
Blind Spot Monitoring:
Standard
360-Degree Camera:
N/A
Driver Attention Monitoring:
N/A
Forward Collision Warning:
N/A
Lane Departure Warning:
N/A
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Safety Features
Backup camera:
Standard
Blind Spot Monitoring:
Standard
360-Degree Camera:
N/A
Driver Attention Monitoring:
N/A
Forward Collision Warning:
N/A
Lane Departure Warning:
N/A
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
37.5 inches
Front Leg Room:
42.3 inches
Front Shoulder Room:
56.9 inches
Rear Head Room:
36.8 inches
Rear Leg Room:
37.4 inches
Rear Shoulder Room:
55 inches
Cargo Space:
14.7 cubic feet
Overall Interior Volume:
95.0 cubic feet
Interior Dimensions
Front Head Room:
37.5 inches
Front Leg Room:
42.3 inches
Front Shoulder Room:
56.9 inches
Rear Head Room:
36.8 inches
Rear Leg Room:
37.4 inches
Rear Shoulder Room:
55 inches
Cargo Space:
15.1 cubic feet
Overall Interior Volume:
95.0 cubic feet
Exterior Dimensions
Curb Weight:
2906 lbs
Width:
70.8 inches
Height:
55.5 inches
Length:
182.8 inches
Wheelbase:
106.3 inches
Ground Clearance:
Not yet available
Exterior Dimensions
Curb Weight:
2795 lbs
Width:
70.8 inches
Height:
55.7 inches
Length:
182.3 inches
Wheelbase:
106.3 inches
Ground Clearance:
Not yet available
Standard Wheel/Tire Information
Wheel Size:
18.0 x 8.0 inches
Wheel Type:
aluminum alloy
Tire Size:
235/40R18
Standard Wheel/Tire Information
Wheel Size:
16.0 x 7.0 inches
Wheel Type:
aluminum alloy
Tire Size:
215/55R16