Compare the2022 Toyota MiraiVS 2021 Hyundai Ioniq Electric

Safety
Warranty
Reliability
Engine
Fuel Economy and Range
Brakes and Stopping
Tires and Wheels
Suspension and Handling
Passenger Space
Cargo Capacity
Servicing Ease
Ergonomics

Safety

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For enhanced safety, the front and rear seat shoulder belts of the Toyota Mirai have pretensioners to tighten the seatbelts and eliminate dangerous slack in the event of a collision and force limiters to limit the pressure the belts will exert on the passengers. The Hyundai Ioniq Electric doesn’t offer pretensioners for the rear seat belts.

The Toyota Mirai has standard driver and front passenger side knee airbags mounted low on the dashboard. These airbags helps prevent the driver and front passenger from sliding under their seatbelts or the main frontal airbags; this keeps them better positioned during a collision for maximum protection. Knee airbags also help keep the legs from striking the dashboard, preventing knee and leg injuries in the case of a serious frontal collision. The Ioniq Electric doesn’t offer a front passenger side knee airbag.

The Mirai has standard Whiplash Injury Lessening Seats (WIL), which use a specially designed headrest to protect the driver and front passenger from whiplash. During a rear-end collision, the WIL system moves the headrests forward to prevent neck and spine injuries. The Ioniq Electric doesn’t offer a whiplash protection system.

The Mirai 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 Ioniq Electric 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.

Over 200 people are killed each year when backed over by motor vehicles. The Mirai offers optional Automated Braking that uses rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The Ioniq Electric doesn’t offer backup collision prevention brakes.

The Mirai offers an optional Bird’s Eye View Monitor to allow the driver to see objects all around the vehicle on a screen. The Ioniq Electric only offers a rear monitor.

To help make backing out of a parking space safer, the Mirai has a standard rear cross-path warning system, which uses sensors in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. Rear cross-path warning costs extra on the Ioniq Electric.

Both the Mirai and the Ioniq Electric have standard driver and passenger frontal airbags, front side-impact airbags, driver knee airbags, side-impact head airbags, height adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, lane departure warning systems, rearview cameras and driver alert monitors.

The Toyota Mirai weighs 884 to 964 pounds more than the Hyundai Ioniq Electric. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

Warranty

There are over 50 percent more Toyota dealers than there are Hyundai dealers, which makes it much easier should you ever need service under the Mirai’s warranty.

Reliability

J.D. Power and Associates’ 2021 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Toyota vehicles are more reliable than Hyundai vehicles. J.D. Power ranks Toyota fourth in reliability, above the industry average. With 3 more problems per 100 vehicles, Hyundai is ranked 7th.

From surveys of all its subscribers, Consumer Reports’ January 2021 Auto Issue reports that Toyota vehicles are more reliable than Hyundai vehicles. Consumer Reports ranks Toyota second in reliability. Hyundai is ranked 6th.

Engine

The Mirai’s electric motor produces 48 more horsepower (182 vs. 134) and 82 lbs.-ft. more torque (300 vs. 218) than the Ioniq Electric’s electric motor.

As tested in Motor Trend the Toyota Mirai is faster than the Hyundai Ioniq Electric:

	Mirai	Ioniq Electric
Zero to 60 MPH	7.6 sec	8.7 sec
Quarter Mile	16 sec	16.8 sec
Speed in 1/4 Mile	86.6 MPH	83.8 MPH

Fuel Economy and Range

The Mirai’s maximum driving range in pure electric mode is 357 miles, over twice as far as the Ioniq Electric’s 170 mile range. After it exhausts its pure electric range, the Mirai can then continue for 45 more miles on its internal combustion engine, while the Ioniq Electric has to recharge for 54 minutes for only a 80% charge at a specially configured quick charge station not available in most areas. A full recharge at a conventional charging station can take up to 35 hours and 30 minutes.

Brakes and Stopping

The Mirai’s standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs on the Ioniq Electric are solid, not vented.

The Mirai stops much shorter than the Ioniq Electric:

	Mirai	Ioniq Electric
60 to 0 MPH	116 feet	129 feet	Motor Trend

Tires and Wheels

For better traction, the Mirai has larger standard tires than the Ioniq Electric (235/55R19 vs. 205/55R16). The Mirai Limited’s optional tires are larger than the largest tires available on the Ioniq Electric (245/45R20 vs. 205/55R16).

The Mirai Limited’s optional tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the Ioniq Electric’s 55 series tires.

For better ride, handling and brake cooling the Mirai has standard 19-inch wheels. Only 16-inch wheels are available on the Ioniq Electric. The Mirai Limited offers optional 20-inch wheels.

Suspension and Handling

For superior ride and handling, the Toyota Mirai 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 Hyundai Ioniq Electric has a rear torsion beam axle, with a semi-independent rear suspension.

For a smoother ride and more stable handling, the Mirai’s wheelbase is 8.6 inches longer than on the Ioniq Electric (114.9 inches vs. 106.3 inches).

For better handling and stability, the track (width between the wheels) on the Mirai is 2.1 inches wider in the front and 1.5 inches wider in the rear than on the Ioniq Electric.

The Mirai XLE handles at .84 G’s, while the Ioniq Electric pulls only .77 G’s of cornering force in a Motor Trend skidpad test.

The Mirai XLE executes Motor Trend’s “Figure Eight” maneuver quicker than the Ioniq Electric (27.3 seconds @ .63 average G’s vs. 28.2 seconds @ .59 average G’s).

Passenger Space

The Mirai has 2.7 inches more front hip room and 2.3 inches more front shoulder room than the Ioniq Electric.

Cargo Capacity

With its sedan body style, valet key and remote trunk release lockout, the Mirai offers cargo security. The Ioniq Electric’s hatchback body style, non-lockable folding seat and non-lockable remote release defeat cargo security.

A standard locking glovebox (which can’t be accessed with the valet key) keeps your small valuables safer in the Mirai. The Ioniq Electric doesn’t offer locking storage for small valuables.

Servicing Ease

The Mirai uses gas struts to support the hood for easier service access. The Ioniq Electric uses a prop rod to support its heavy hood. It takes two hands to open the hood and set the prop rod, the prop rod gets in the way during maintenance and service, and the prop rod could be knocked out, causing the heavy hood to fall on the person maintaining or servicing the car.

Ergonomics

The Mirai Limited has a standard heads-up display that projects speed and navigation instruction readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Ioniq Electric doesn’t offer a heads-up display.

The Mirai’s front and rear power windows all open or close fully with one touch of the switches, making it more convenient at drive-up windows and toll booths, or when talking with someone outside the car. The Ioniq Electric’s standard passenger windows don’t open or close automatically. With the Ioniq Electric’s optional power windows, only the front windows open or close automatically.

If the windows are left open on the Mirai 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. (This window function must be activated by your Toyota service department.) The driver of the Ioniq Electric can only operate the windows from inside the vehicle, with the ignition on.

The Mirai’s power window, power lock, power mirror and cruise control switches are lit from behind, making them plainly visible and easier to operate at night. The Ioniq Electric’s power mirror switches are unlit, making them difficult to find at night and operate safely.

The Mirai Limited’s standard wipers adjust their speed and turn on and off automatically according to the amount of rainfall on the windshield. The Ioniq Electric’s manually variable intermittent wipers have to be constantly adjusted.

A power rear sunshade and manual rear side window sunshades are standard in the Mirai Limited to help block heat and glare for the rear passengers. The Ioniq Electric doesn’t offer a rear or rear side window sunshades.

When the Mirai Limited is put in reverse, both rearview mirrors tilt from their original position. This gives the driver a better view of the curb during parallel parking maneuvers. Shifting out of reverse puts the mirrors into their original positions. The Ioniq Electric’s mirrors don’t automatically adjust for backing.

Both the Mirai and the Ioniq Electric have standard heated front seats. The Mirai Limited also has standard heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the Ioniq Electric.

Standard air conditioned seats in front and rear seats keep the Mirai Limited’s passengers comfortable and take the sting out of hot leather in summer. The Ioniq Electric doesn’t offer air-conditioned seats.

The Mirai’s standard dual zone air conditioning allows the driver and front passenger to choose two completely different temperatures so people with different temperature preferences won’t have to compromise. This makes both the driver and front passenger as comfortable as possible. The Ioniq Electric doesn’t offer dual zone air conditioning.

Both the Mirai and the Ioniq Electric offer rear vents. For greater rear passenger comfort, the Mirai has standard rear air conditioning vents to keep rear occupants cool in summer or warm in winter. The Ioniq Electric doesn’t offer rear air conditioning vents, only heat vents.

To quickly and conveniently keep personal devices charged without cables tangling and wearing out, the Toyota Mirai has a standard wireless phone charging system (Qi) in the center console. The Ioniq Electric doesn’t offer wireless personal charging.

The Mirai Limited’s Intelligent Parking Assist can parallel park or back into a parking spot by itself, starting, stopping and changing direction automatically. The Ioniq Electric doesn’t offer an automated parking system.