Sonic

Overview

Body

Compact CarsEPA, from EPA, last updated 6/11/2026

Drivetrain

Front-Wheel DriveEPA, from EPA, last updated 6/11/2026

Transmission

Automatic (S6)EPA, from EPA, last updated 6/11/2026

Powertrain

GasEPA, from EPA, last updated 6/11/2026

Fuel

RegularEPA, from EPA, last updated 6/11/2026

Engine & performance

HP

140

Power to weight

0.052 hp/lb

Axle ratio

3.47

Cyl

4EPA, from EPA, last updated 6/11/2026

Aspiration

Naturally aspiratedEPA, from EPA, last updated 6/11/2026

Start-stop system

NoEPA, from EPA, last updated 6/11/2026

Efficiency

MPG Hwy

34 mpgEPA, from EPA, last updated 6/11/2026

MPG City

24 mpgEPA, from EPA, last updated 6/11/2026

MPG Comb

28 mpgEPA, from EPA, last updated 6/11/2026

Fuel $/yr

$2,200EPA, from EPA, last updated 6/11/2026

CO₂

318 g/miEPA, from EPA, last updated 6/11/2026

Eco Score

7/10EPA, from EPA, last updated 6/11/2026

Smog score

6/10

Elec. Range

0 miEPA, from EPA, last updated 6/11/2026

Real-world MPG

29.9 mpg, reported by 2 driversabout 1.9 mpg above the EPA combined estimate

SmartWay certified

Yes

Dimensions & capacity

Length

159 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Width

69 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Height

60 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Wheelbase

100 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Curb Weight

2,712 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Pass. Vol

91 ft³EPA, from EPA, last updated 6/11/2026

Cargo Vol

12 ft³EPA, from EPA, last updated 6/11/2026

Safety NHTSA, model year

Overall crash rating

★★★★★

Rollover rating

★★★★★

Stability control (ESC)

Standard

Forward-collision warning

Optional

Lane-departure warning

Optional

Recalls

2

Owner complaints

48

Reported injuries

6

Feature availability

Which features come standard, cost extra, or are locked to a pricier trim arrives with the next data phase. Standard equipment shows here today.