VS
At a Glance
Power
355hp @ 5500
303hp
Torque
354lb-ft @ 1400
446lb-ft
Fuel
19 mpg est.
—
Towing
5000lbs
5000lbs
Engine
3.0 L/183ci
—
Choosing between the Acura Mdx and the Hyundai Ioniq 9 is one of the most common decisions car buyers in the United States face. The Acura Mdx delivers 355hp @ 5500 while the Hyundai Ioniq 9 produces 303hp. Pricing starts at $75,850 for the Mdx and $58,955 for the Ioniq 9. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.
Specification
Acura MdxType S SH-AWD w/Advance Package 2026 - From $75,850
Hyundai Ioniq 9SEL AWD 2026 - From $58,955
Performance
Power Output (hp)
355hp @ 5500
303hp
Torque (lb-ft)
354lb-ft @ 1400
446lb-ft
Engine & Drivetrain
Engine Capacity
3.0 L/183ci
—
Engine Layout
V
—
Cylinders
6
—
Fuel Type
Gasoline
Electric
Forced Induction Device
Turbocharged
—
Transmission
Automatic
Automatic
Number of Gears
—
1
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
19 mpg est.
—
Fuel Economy - City (mpg)
17mpg
—
Fuel Economy - Highway (mpg)
21mpg
—
Fuel Tank Capacity (gal)
18.5gal
—
Dimensions
Length (in)
198.4in
199.2in
Width (in)
78.7in
78in
Height (in)
67.9in
70.5in
Wheelbase (in)
113.8in
123.2in
Curb Weight (lbs)
4776lbs
5902lbs
Towing & Payload
Towing Capacity (lbs)
5000lbs
5000lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
✓ Standard
Sunroof
✓ Standard
—
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Trailer Hitch
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Tie
1 / 4 categories
Performance
Mdx
Fuel Economy
Tied
Value
Ioniq 9
Practicality
Tied
Pros & Cons
Acura Mdx
Well-rounded specification
Higher starting price
Hyundai Ioniq 9
Lower starting price ($58,955)
Few notable weaknesses
Frequently Asked Questions
Which has more power, the Mdx or Ioniq 9?
The Mdx produces 355hp @ 5500 and 354lb-ft @ 1400 of torque while the Ioniq 9 delivers 303hp and 446lb-ft of torque. The Mdx is the more powerful option.
What is the price difference between the Mdx and Ioniq 9?
The Mdx starts from $75,850 and the Ioniq 9 from $58,955. The Ioniq 9 is cheaper by $16,895 at this variant level. Final on-the-road pricing varies by dealer and specification.
Which has a higher towing capacity, the Mdx or Ioniq 9?
The Mdx has a braked towing capacity of 5000lbs and the Ioniq 9 can tow 5000lbs. Always verify towing limits in the owner's manual before hitching a trailer.
Should I buy the Mdx or the Ioniq 9?
It depends on your priorities. If fuel economy matters most, check the mpg figures above. If you need towing capacity, compare the towing ratings. For day-to-day driving - commutes, school runs and highway trips - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.