Auto Guide
2018 Chevrolet Sonic
Used

Review and specifications

2018 Chevrolet Sonic

The standard Sonic uses an unimpressive 1.8-liter four-cylinder engine, which makes the expense of upgrading to the modestly quicker and more fuel-efficient 1.4-liter turbocharged four-cylinder worthwhile. The six-speed manual transmission is somewhat balky, but the automatic has to dig for gears constantly. Handling is fairly nimble, the brakes are excellent, and the ride is civilized for this class. The sedan has a huge trunk and gives a better view out, but the hatchback version has more cargo versatility. Both offer a relatively quiet cabin, but the rear seats are cramped. We'd opt for the LT automatic sedan for its extra cargo space and visibility and the MyLink system. We'd also look for the quicker and more efficient turbocharged engine. Crash-test results are impressive. 2020 was the final year for the Sonic.

Market value
$7,088
Fuel
Conventional
Transmission
Automatic
Seats
5
View listings Find dealers
Model year 2018
Owner rating Not rated
Reliability Not rated
Data updated June 4, 2026

At a glance

Model data

Overview

Powertrain
Conventional
Body style
4-door hatchback
Drive type
FWD
Transmission
Automatic, 6-speed
Category
Small sedans/hatchbacks
Generation began
2012

Pricing

Current retail median
$7,088
Retail value range
$5,200 - $8,575
Original MSRP range
$15,295 - $21,320
Trade-in range
$2,250 - $5,415

Ratings

Road test score
66/100

Fuel economy

EPA city
25 MPG
EPA highway
35 MPG
EPA combined
29 MPG
Tested city
19 MPG
Tested highway
38 MPG
Tested overall
28 MPG
Annual fuel cost
$1,380
Cruising range
345 miles

Road tests

0-30 mph
3.2 sec
0-60 mph
9.3 sec
60-0 mph braking
128 ft
Avoidance speed
54 mph
Test status
Test Completed

Dimensions

Length
174 in
Width
68 in
Height
60 in
Wheelbase
99 in
Weight
2,765 lb
Maximum load
895 lb
Towing capacity
0 lb

Interior

Seating
5 people
Front head room
5.5 in
Front leg room
42 in
Rear head room
2.5 in
Rear leg room
24 in
Luggage
3+0+0

Environmental impact

Air pollution score
5/10
Greenhouse gas score
6/10
SmartWay
No

Brand context

About Chevrolet

<p>Once a purveyor of all things automotive, Chevrolet has shifted its focus toward SUVs and pickup trucks, with the supercar-like Corvette being a notable exception. It has been pioneering with electric vehicles, and it continues to introduce new EVs. Most models have roomy interiors, easy-to-use controls, and good array of standard safety and convenience technology. Several models, however, have poor visibility and lack steering agility. Many Chevrolets rate average or below average for reliability in CR’s rankings, resulting in few carrying our recommendation. The Suburban and Tahoe can keep three rows of passengers comfortable within their enormous cabins. The Silverado pickup truck competes with the best-selling Ford F-150 and Ram 1500 by balancing interior comfort with towing and cargo capability. With some exceptions, used Chevrolets can have reliability issues, but are often less expensive to maintain and repair than competitors.</p>

Vehicle ID: 12124 First published: July 22, 2020 Updated: June 4, 2026

Values may vary by trim, options, location, and market conditions.

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