2019 Honda Clarity Fuel Cell vs. 2019 Hyundai Sonata Plug-In Hybrid

Detailed Review, Specifications & Comparison

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2019 Hyundai Sonata Plug-In Hybrid

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Both the Clarity Fuel Cell and the Sonata Plug-In Hybrid 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, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights and rearview cameras.


There are over 24 percent more Honda dealers than there are Hyundai dealers, which makes it easier should you ever need service under the Clarity Fuel Cell’s warranty.

Fuel Economy and Range

On the EPA test cycle the Clarity Fuel Cell gets better fuel mileage than the Sonata Plug-In Hybrid running its gasoline engine (68 city/67 hwy MPGe vs. 37 city/42 hwy).

The Clarity Fuel Cell’s maximum driving range is 360 miles on pure hydrogen. The Sonata Plug-In Hybrid has to start its internal combustion engine after only 29 miles.

Brakes and Stopping

For better stopping power the Clarity Fuel Cell’s brake rotors are larger than those on the Sonata Plug-In Hybrid:




Front Rotors

12.3 inches

12 inches

Rear Rotors

12.2 inches

11.2 inches

Tires and Wheels

For better traction, the Clarity Fuel Cell has larger tires than the Sonata Plug-In Hybrid (235/45R18 vs. 215/55R17).

The Clarity Fuel Cell’s tires provide better handling because they have a lower 45 series profile (height to width ratio) that provides a stiffer sidewall than the Sonata Plug-In Hybrid’s standard 55 series tires.

For better ride, handling and brake cooling the Clarity Fuel Cell has standard 18-inch wheels. Only 17-inch wheels are available on the Sonata Plug-In Hybrid.

Passenger Space

The Clarity Fuel Cell has .5 inches more front hip room, 1.8 inches more front shoulder room, .6 inches more rear legroom and .8 inches more rear shoulder room than the Sonata Plug-In Hybrid.

Cargo Capacity

The Clarity Fuel Cell has a much larger trunk than the Sonata Plug-In Hybrid (11.8 vs. 9.9 cubic feet).

The Clarity Fuel Cell’s standard rear seats fold to accommodate long and bulky cargo. The Sonata Plug-In Hybrid doesn’t offer folding rear seats, only a ski pass-through.


The Clarity Fuel Cell has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The Sonata Plug-In Hybrid doesn’t offer a remote starting system.

The Clarity Fuel Cell has a standard heads-up display that projects speed readouts in front of the driver’s line of sight, allowing drivers to view information without diverting their eyes from the road. The Sonata Plug-In Hybrid doesn’t offer a heads-up display.

The Clarity Fuel Cell’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 Sonata Plug-In Hybrid’s rear power window switches have to be held the entire time to open or close them fully.

If the windows are left open on the Clarity Fuel Cell 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. The driver of the Sonata Plug-In Hybrid can only operate the windows from inside the vehicle, with the ignition on.

The Clarity Fuel Cell’s rain-sensitive wipers adjust their speed and turn on and off automatically based on the amount of rainfall on the windshield. This allows the driver to concentrate on driving without constantly adjusting the wipers. The Sonata Plug-In Hybrid’s intermittent wipers change speed with vehicle speed, but can’t turn on and off or change speed based on changing rainfall.

Both the Clarity Fuel Cell and the Sonata Plug-In Hybrid have standard heated front seats. The Clarity Fuel Cell also has standard heated rear seats to keep those passengers extremely comfortable in the winter. Heated rear seats aren’t available in the Sonata Plug-In Hybrid.

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