Is Acura RDX or MDX bigger?
The Acura MDX is bigger than the RDX. It offers a three-row layout, a longer body, and more interior and cargo space, while the RDX remains a smaller, two-row luxury SUV designed for maneuverability and efficiency.
Here is a detailed comparison of size, space, and practicality as of the current model generations (model years 2023–2024, with figures that can vary slightly by trim and year).
Exterior size comparison
The MDX is designed to be visibly larger than the RDX, reflecting its three-row architecture. Exterior dimensions matter for parking, driving feel, and interior comfort, and the MDX’s footprint is noticeably bigger across length, width, and wheelbase.
- Acura RDX: approximately 192 inches long, wheelbase about 111 inches, width around 74.8 inches.
- Acura MDX: approximately 199–200 inches long, wheelbase around 113–114 inches, width around 78–79 inches.
In practice, the MDX’s longer body and wider stance translate to a roomier interior and a more spacious feel overall, especially when comparing along the rear half of the vehicle. The differences are most obvious when parking or maneuvering in tight urban spaces, where the RDX’s compact footprint can be advantageous.
Interior and cargo capacity
Interior space reflects seating arrangements and cargo practicality. The MDX’s three-row setup accommodates more passengers, with corresponding implications for cargo versatility and rear-seat access. The RDX focuses on a more compact, premium two-row experience.
- Seating: RDX seats up to 5 passengers; MDX seats up to 7 (or 6 in configurations with captain’s chairs in the second row).
- Cargo space (behind the rear row): RDX offers roughly 30 cubic feet of cargo space behind the second row; MDX behind the third row is about 15 cubic feet, and behind the second row (with the third row folded) is around 46 cubic feet.
These space figures illustrate why the MDX is favored for larger families or those who regularly haul more passengers and gear, while the RDX remains a strong choice for individuals or small families who prioritize a premium, maneuverable SUV without the need for a third row.
Which should you choose if space matters?
If you routinely need three rows and maximum cargo versatility, the MDX is the bigger option and typically the better fit. If you want a smaller, easier-to-park premium SUV with strong cargo capacity for a two-row layout, the RDX is the more space-efficient pick.
Summary
Across exterior dimensions, seating capacity, and cargo capacity, the Acura MDX is larger than the RDX. The MDX’s three-row design drives its bigger footprint and greater interior volume, whereas the RDX prioritizes a more compact footprint with a refined two-row layout. Your choice should hinge on whether you need extra seating and cubic space (MDX) or a smaller, more agile luxury SUV (RDX).
Which Acura SUV is the biggest?
The largest Acura SUV is the MDX, which is a three-row, seven-passenger vehicle with a larger overall size and more cargo space than other models like the RDX. It is Acura's biggest offering, designed for larger families or those who need more passenger and cargo room.
- Size: The MDX is larger than the RDX in both length and width and has a longer wheelbase.
- Seating: It offers three rows of seating, accommodating up to seven passengers.
- Cargo: With up to 79.8 cubic feet of max cargo volume, it provides significantly more storage space than the RDX.
- Other models: Compared to the Acura RDX, which is a two-row SUV with a smaller capacity, the MDX is the larger vehicle.
What year of Acura RDX to stay away from?
The Acura RDX years to avoid are generally the 2015, 2019, and 2021 models due to significant issues. The 2019 is often cited as the worst, especially the first model year of the third generation, with problems like engine stalling and power loss. Other years with notable problems include the 2013, 2014, and 2018.
This video discusses common problems with the Acura RDX, including potential engine, transmission, and electrical issues: 59sHey, ask your dadYouTube · May 24, 2025
Years to be cautious about
- 2013-2015: These years can have transmission issues like rough shifting and slipping, and some models may have engine oil leaks.
- 2015: In addition to transmission problems, this model year had issues with airbags and the soy-based wiring insulation attracted animals.
- 2018: Reported transmission problems and potential engine issues like head gasket or timing chain problems have been noted.
- 2019: This is widely considered the least reliable model year, particularly because it was the first year of a new generation. Owners have reported engine stalling, power loss, and issues with the rear glass shattering.
- 2021: This year experienced issues with the transmission, brakes, and engine stalling due to a potential intercooler design flaw that could let moisture into the engine.
What to do if buying used
- Thoroughly inspect any used model for the specific issues mentioned above.
- If considering one of these years, have a trusted mechanic perform a pre-purchase inspection.
- Check for service records and recall history.
This video demonstrates how to inspect an Acura RDX for potential issues, including engine oil leaks and suspension problems: 58sBCauto_YouTube · Aug 21, 2024
Is Acura RDX or MDX more luxurious?
Key Differences
The MDX ranks 5th in mid-size luxury SUVs with an 8/10 C/D rating, while the RDX ranks 14th in compact luxury SUVs with a 6.5/10 rating. Both feature 10-speed automatics and all-wheel drive, but the MDX offers front-wheel drive as standard while the RDX comes with all-wheel drive standard.
What is the difference between the RDX and the MDX?
The main differences are that the Acura MDX is a larger, three-row SUV, while the Acura RDX is a smaller, two-row crossover. This means the MDX seats up to seven passengers and offers more towing capacity, while the RDX is more fuel-efficient and has a lower starting price. The MDX is also more powerful with a standard V6 engine, compared to the RDX's standard turbocharged 4-cylinder engine.
| Feature | Acura RDX | Acura MDX |
|---|---|---|
| Size | Compact crossover | Midsize SUV |
| Seating | 5 passengers in 2 rows | Up to 7 passengers in 3 rows |
| Engine | 2.0L turbocharged 4-cylinder (~272 hp) | 3.5L V6 (~290 hp), or 3.0L turbo V6 in Type S (~355 hp) |
| Towing | Up to 1,500 lbs | Up to 5,000 lbs |
| Cargo Space | Less overall than MDX | More overall than RDX |
| Price | Lower starting price | Higher starting price |
| Fuel Economy | Better fuel economy | Lower fuel economy |
| Infotainment Display | 10.2-inch display | 12.3-inch display |
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