Compare the2026 Ford Mustang Mach-EVS 2026 Hyundai Ioniq 9

The Mustang Mach-E has standard Post Collision Braking, which automatically apply the brakes in the event of a crash to help prevent secondary collisions and prevent further injuries. The Ioniq 9 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.

Both the Mustang Mach-E and the Ioniq 9 have standard driver and passenger frontal airbags, front and rear side-impact airbags, driver knee airbags, side-impact head airbags, front seatbelt pretensioners, 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, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available around view monitors.

There are over 3 times as many Ford dealers as there are Hyundai dealers, which makes it much easier should you ever need service under the Mustang Mach-E’s warranty.

J.D. Power and Associates’ 2025 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Ford vehicles are more reliable than Hyundai With 14 fewer problems per 100 vehicles in the first three years of ownership, J.D. Power ranks Ford higher than Hyundai.

From surveys of all its subscribers, Consumer Reports’ March 2026 Auto Issue reports that Ford vehicles are more reliable than Hyundai vehicles. Consumer Reports ranks Ford 1 place higher in reliability than Hyundai.

The Mustang Mach-E has more powerful engines than the Ioniq 9:

As tested in Motor Trend the Mustang Mach-E ER eAWD electric motors is faster than the Ioniq 9 Limited/Calligraphy electric motors:

On the EPA test cycle the Mustang Mach-E gets better mileage than the Ioniq 9:

For better stopping power the Mustang Mach-E GT/Rally’s front brake rotors are larger than those on the Ioniq 9:

The Mustang Mach-E stops much shorter than the Ioniq 9:

The Mustang Mach-E’s standard tires provide better handling because they have a lower 55 series profile (height to width ratio) that provides a stiffer sidewall than the Ioniq 9 S/SE’s standard 60 series tires.

The Mustang Mach-E offers an available driver-adjustable suspension system. It allows the driver to choose between an extra-supple ride, reducing fatigue on long trips, or a sport setting, which allows maximum control for tricky roads or off-road. The Ioniq 9’s suspension doesn’t offer adjustable shock absorbers.

The Mustang Mach-E GT handles at .92 G’s, while the Ioniq 9 Calligraphy pulls only .88 G’s of cornering force in a Car and Driver skidpad test.

The Mustang Mach-E GT executes Motor Trend’s “Figure Eight” maneuver 1.8 seconds quicker than the Ioniq 9 S (25.9 seconds @ .7 average G’s vs. 27.7 seconds @ .62 average G’s).

For better maneuverability, the Mustang Mach-E’s turning circle is 2.9 feet tighter than the Ioniq 9’s (38.1 feet vs. 41 feet).

The Ford Mustang Mach-E may be more efficient, handle and accelerate better because it weighs about 1050 to 1100 pounds less than the Hyundai Ioniq 9.

The Mustang Mach-E Select/Premium is 1 foot, 1.6 inches shorter than the Ioniq 9, making the Mustang Mach-E easier to handle, maneuver and park in tight spaces.

The Mustang Mach-E has a much larger cargo volume than the Ioniq 9 with its rear seat up (29.7 vs. 21.9 cubic feet).

The Mustang Mach-E’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 9’s standard 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 Mustang Mach-E the driver can close all of them from a distance using the remote. On a hot day the driver can also lower the windows the same way. The driver of the Ioniq 9 can only close the windows from inside the vehicle, with the ignition on.

In case you lock your keys in your vehicle, or don’t have them with you, you can let yourself in using the Mustang Mach-E’s exterior PIN entry system. The Ioniq 9 doesn’t offer an exterior PIN entry system, and its Blue Link can’t unlock the doors if the vehicle doesn’t have cell phone reception or the driver can’t contact the service.

Consumer Reports® recommends the Ford Mustang Mach-E, based on reliability, safety and performance.

A group of representative automotive journalists from North America selected the Mustang Mach-E as the 2021 North American Utility Vehicle of the Year. The Ioniq 9 has never been chosen.

The Ford Mustang Mach-E outsold the Hyundai Ioniq 9 by almost 10 to one during 2025.