Which is smaller the Acura MDX or RDX?
The Acura RDX is smaller than the Acura MDX. The MDX is a larger, three-row SUV, while the RDX is a compact luxury crossover with two rows. This article explains what that difference means in real-world terms for buyers considering space, seating, and everyday use.
Size and practicality
Key size differences include exterior dimensions, seating configurations, and cargo capacity.
- Seating capacity: MDX offers three rows (up to seven passengers with a bench in the second row, or six with captain’s chairs); RDX is a two-row, five-seat SUV.
- Exterior footprint: MDX is longer and wider, producing a larger overall footprint than the RDX.
- Interior volume: MDX provides more overall interior space due to the added row, while the RDX emphasizes a more compact cabin layout.
- Cargo and practicality: With occupants aboard, the MDX typically offers more cargo room and versatility, especially when a third row is folded or removed; the RDX delivers solid cargo space for a compact SUV but less total capacity than the MDX.
- Handling and maneuverability: The smaller RDX generally feels more maneuverable in tight urban environments, whereas the MDX’s larger size can impact parking and turning radius.
Overall, the RDX is the smaller option, better suited to daily urban driving and easier parking, while the MDX prioritizes space for families and longer trips.
What this means for buyers
Understanding the space differences helps buyers align their needs with the right model. If you regularly transport seven people or need maximum cargo flexibility with a third row, the MDX is the more capable choice. If you value a compact footprint, easier parking, and strong cargo capacity in a two-row layout, the RDX fits better.
Model year and configuration notes
Sizes and configurations can vary slightly by model year and trim. For example, MDX configurations may affect seating options (such as captain’s chairs versus a bench) and the exact cargo figures. Always check the latest specifications on Acura’s official site or with a local dealer for the model year you’re considering.
Summary: The Acura MDX is larger and more spacious due to its three-row design, while the Acura RDX is the smaller, more maneuverable two-row option.
Which is more expensive, Acura RDX or Acura MDX?
Acura MDX vs Acura RDX - Car Comparison
| Vehicle | 2026 Acura MDX 4dr SUV (3.5L 6cyl 10A) | 2025 Acura RDX 4dr SUV AWD (2.0L 4cyl Turbo 10A) |
|---|---|---|
| Section Title | Pricing | Pricing |
| Starting MSRP | Starting MSRP $53,150 | Starting MSRP $46,050 |
| Average Price Paid | Average Price Paid $50,269 | Average Price Paid $43,885 |
| Invoice | Invoice - | Invoice - |
Are the RDX and MDX the same size?
Is the Acura MDX bigger than the Acura RDX? The Acura MDX is a larger SUV than the Acura RDX and also offers another row of seats so that you can fit more passengers.
Which is more reliable, Acura RDX or MDX?
The Acura RDX has a slightly better overall reliability rating than the MDX, with a higher rating on RepairPal (4.5/54.5 / 54.5/5 vs. 4.0/54.0 / 54.0/5) and lower average annual repair costs. However, both models are considered reliable, with major issues being uncommon for both. The choice between the two may come down to factors like size, price, and performance, rather than a significant reliability gap.
Acura RDX vs. MDX reliability breakdown
| Feature | Acura RDX | Acura MDX |
|---|---|---|
| Overall Reliability | Higher: 4.5/54.5 / 54.5/5 (1st out of 11 luxury compact SUVs) | Lower: 4.0/54.0 / 54.0/5 (2nd out of 14 luxury midsize SUVs) |
| Average Annual Repair Cost | Lower: $497$ 497$497 (below average) | Higher: $571$ 571$571 (average) |
| Severity of Repairs | Low | Low |
| Frequency of Issues | Average | Average |
| Major Issues | Uncommon | Uncommon |
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Other factors to consider
- Price: The RDX has a lower starting price.
- Size: The MDX is a larger, three-row SUV, while the RDX is a smaller, two-row SUV.
- Performance: The MDX offers a more powerful V6 engine and higher towing capacity, while the RDX's turbocharged 4-cylinder is more fuel-efficient.
- Features: The MDX may come standard with more advanced features due to its higher price point.
What is the lawsuit against the Acura RDX?
In the case, plaintiffs alleged that America Honda Motor Co., Inc. (“AHM”) knowingly sold its 2019-2020 Acura RDX vehicles with defective infotainment systems that behaved erratically, malfunctioned, and repeatedly froze, thereby distracting the driver and posing a safety hazard.
