2020 Toyota Corolla vs. 2019 Chevrolet Sonic

Detailed Review, Specifications & Comparison

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Safety

The Corolla has standard Whiplash Injury Lessening Seats, which use a specially designed seat to protect the driver and front passenger from whiplash. During a rear-end collision, the Whiplash Injury Lessening Seats system allows the backrest to travel backwards to cushion the occupants and the headrests move forward to prevent neck and spine injuries. The Sonic doesn’t offer a whiplash protection system.

The Corolla has standard Pre-Collision System, which use forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn’t react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The Sonic offers an available collision warning system without the automated brake feature that would prevent or reduce the collision if the driver fails to react.

The Corolla has a standard Secondary Collision Brake, which automatically applies the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Sonic doesn’t offer a post collision braking system: in the event of a collision that triggers the airbags, more collisions are possible without the protection of airbags that may have already deployed.

The Corolla’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 Sonic doesn’t offer a driver alert monitor.

Both the Corolla and the Sonic have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, front wheel drive, height adjustable front shoulder belts, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras and available blind spot warning systems.

Warranty

The Corolla’s corrosion warranty is unlimited miles longer than the Sonic’s (unlimited vs. 100,000 miles).

Toyota pays for scheduled maintenance on the Corolla for 2 years and 25000 miles. Toyota will pay for oil changes, lubrication and any other required maintenance. Chevrolet only pays for the first scheduled maintenance visit on the Sonic.

Reliability

J.D. Power and Associates rated the Corolla first among compact cars in their 2018 Initial Quality Study. The Sonic isn’t in the top three in its category.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Toyota vehicles are more reliable than Chevrolet vehicles. J.D. Power ranks Toyota second in reliability, above the industry average. With 7 more problems per 100 vehicles, Chevrolet is ranked fourth.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that Toyota vehicles are more reliable than Chevrolet vehicles. Consumer Reports ranks Toyota second in reliability. Chevrolet is ranked 23rd.

Engine

The Corolla SE/XSE’s standard 2.0 DOHC 4 cyl. produces 31 more horsepower (169 vs. 138) and 3 lbs.-ft. more torque (151 vs. 148) than the Sonic’s 1.4 turbo 4 cyl.

Fuel Economy and Range

On the EPA test cycle the Corolla gets better fuel mileage than the Sonic:

 

 

 

MPG

Corolla

 

Auto

1.8 DOHC 4 cyl.

30 city/38 hwy

 

 

XLE 1.8 DOHC 4 cyl.

29 city/37 hwy

 

 

SE 2.0 DOHC 4 cyl.

31 city/40 hwy

 

 

XSE 2.0 DOHC 4 cyl.

31 city/38 hwy

Sonic

 

Auto

1.4 turbo 4 cyl.

26 city/34 hwy

The Corolla has a gallon more fuel capacity than the Sonic (13.2 vs. 12.2 gallons), for longer range between fill-ups.

Transmission

The Toyota Corolla comes standard with an automatic transmission, for driver comfort, especially in the city. Automatic costs extra on the Sonic.

The Corolla has a standard continuously variable transmission (CVT). With no “steps” between gears, it can keep the engine at the most efficient speed for fuel economy, or keep it at its peak horsepower indefinitely for maximum acceleration. The Sonic doesn’t offer a CVT.

Brakes and Stopping

The Corolla’s brakes have 127% more swept area (the area covered by the brake pads) than the Sonic (376 vs. 165.3 square inches), so the Corolla has more braking power available.

The Toyota Corolla has standard four-wheel disc brakes for better stopping power and improved directional control in poor weather. Only rear drums come on the Sonic. Drums can heat up and make stops longer, especially with antilock brakes that work much harder than conventional brakes.

Tires and Wheels

For better traction, the Corolla SE/XSE’s tires are larger than the largest tires available on the Sonic (225/40R18 vs. 205/55R16).

The Corolla SE/XSE’s tires provide better handling because they have a lower 40 series profile (height to width ratio) that provides a stiffer sidewall than the Sonic’s optional 50 series tires.

For better ride, handling and brake cooling the Corolla SE/XSE has standard 18-inch wheels. The Sonic’s largest wheels are only 17-inches.

Suspension and Handling

For superior ride and handling, the Toyota Corolla has fully independent front and rear suspensions. An independent suspension allows the wheels to follow the road at the best angle for gripping the pavement, without compromising ride comfort. The Chevrolet Sonic has a rear torsion beam axle, with a semi-independent rear suspension.

The Corolla has standard front and rear stabilizer bars, which help keep the Corolla flat and controlled during cornering. The Sonic’s suspension doesn’t offer a rear stabilizer bar.

For a smoother ride and more stable handling, the Corolla’s wheelbase is 6.9 inches longer than on the Sonic (106.3 inches vs. 99.4 inches).

For better handling and stability, the track (width between the wheels) on the Corolla is .9 inches wider in the front and 1.4 inches wider in the rear than on the Sonic.

For better maneuverability, the Corolla’s turning circle is .4 feet tighter than the Sonic LS/LT’s (34.1 feet vs. 34.5 feet). The Corolla’s turning circle is 2 feet tighter than the Sonic LTZ/RS’ (34.1 feet vs. 36.1 feet).

Chassis

For excellent aerodynamics, the Corolla has standard flush composite headlights. The Sonic has recessed headlights that spoil its aerodynamic shape and create extra drag.

Passenger Space

The Corolla has .5 inches more front legroom, 1.6 inches more front hip room, 1.4 inches more front shoulder room, .2 inches more rear legroom and 1.8 inches more rear shoulder room than the Sonic Sedan.

Cargo Capacity

A low lift-over trunk design makes loading and unloading the Corolla easier. The Corolla’s trunk lift-over height is 25.5 inches, while the Sonic’s liftover is 27.25 inches.

Ergonomics

The Corolla’s standard power windows allow the driver or passenger to lower and raise the windows without leaning over or being distracted. Power windows are only available on the Sonic LT/Premier.

The Corolla’s front and rear power windows all open or close with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside of the car. The Sonic LT/Premier’s rear power window switches have to be held the entire time to close them fully.

If the windows are left open on the Corolla the driver can close them all at the outside door handle. On a hot day the driver can lower the windows at the outside door handle or from a distance using the keyless remote. (Your Toyota service department must activate this window function.) The driver of the Sonic can only operate the windows from inside the vehicle, with the ignition on.

While driving with high beams on, sensitive light sensors standard on the Corolla detect other vehicles which could be blinded and automatically switch to low beams. The Sonic doesn’t offer automatic dimming high beams.

To help drivers see further while navigating curves, the Corolla XLE/XSE offers optional adaptive headlights to illuminate around corners automatically by reading vehicle speed and steering wheel angle. The Sonic doesn’t offer cornering lights.

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Corolla has standard extendable sun visors. The Sonic doesn’t offer extendable visors.

The Corolla LE/XLE/SE/XSE has a standard center folding armrest for the rear passengers. A center armrest helps make rear passengers more comfortable. The Sonic doesn’t offer a rear seat center armrest.

The Corolla LE/XLE/SE/XSE’s standard automatic temperature control maintains the temperature you set, automatically controlling fan speed, vents and temperature to maintain a consistent, comfortable environment. The Sonic doesn’t offer automatic air conditioning.

For greater rear passenger comfort, the Corolla has standard rear heat vents to keep rear occupants more comfortable. The Sonic doesn’t offer rear vents.

To keep a safe, consistent following distance, the Corolla has a standard Dynamic Radar Cruise Control, which alters the speed of the vehicle without driver intervention. This allows the driver to use cruise control more safely without constantly having to disengage it when approaching slower traffic. The Sonic doesn’t offer an adaptive cruise control.

The Corolla XLE/XSE’s available GPS navigation system has a real-time traffic update feature that plots alternative routes to automatically bypass traffic problems. (Service not available in all areas.) The Sonic’s available navigation system doesn’t offer real-time traffic updates.

Model Availability

The Toyota Corolla comes in sedan and four-door hatchback bodystyles; the Chevrolet Sonic isn’t available as a four-door hatchback.

Recommendations

The Toyota Corolla outsold the Chevrolet Sonic by almost 15 to one during 2018.

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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