Which is bigger, the Acura MDX or Infiniti QX60?

The Infiniti QX60 is generally the larger SUV in terms of exterior footprint, while the Acura MDX remains a close competitor with ample space and strong practicality.

For shoppers deciding between these two 3-row crossover SUVs, size matters for garage space, passenger comfort, and cargo versatility. This article compares their exterior dimensions, interior practicality, and overall feel for current model years, reflecting updates through 2024–2025.

Exterior footprint: length, width, and height

Below is a quick snapshot of how the two crossovers compare in overall size on the road, which impacts parking, garage fit, and the sense of space from the driver's seat.

• Infiniti QX60 typically has a longer exterior length than the Acura MDX, giving it a bigger footprint overall.


• Both vehicles share a similar width, with minor differences depending on trim and mirrors, but the QX60 often wears a slightly taller profile.


• The QX60 generally rides on a longer wheelbase, contributing to a more substantial road presence and potentially more interior rigidity for highway cruising.


• Overall, the QX60 tends to feel more expansive on the road, while the MDX emphasizes a compact-luxury footprint with strong interior access.

In practical terms, if garage space or maneuverability in tight parking is a priority, the MDX can feel a touch more maneuverable, while the QX60 presents a larger visual and physical footprint on the street.

Interior space and practicality

This section weighs how each SUV spaces its three rows, plus cargo and everyday storage, which affects family usability beyond raw exterior dimensions.

• The MDX offers flexible seating configurations (including 7- or 6-passenger layouts with available captain’s chairs), which can enhance second-row comfort and rear-seat access.


• The QX60 seats seven in most trims with the traditional three-across second row; some configurations reserve the second row for a bench, while captain’s chairs are less common than in some rivals.


• Interior cargo and stowage capacity improve with both models when the third row is folded, but the exact shapes and access differ by design language and trim.


• Both SUVs prioritize rear-seat comfort, with trunk space and third-row accessibility influenced by seat design, headroom, and overall cabin packaging.

For families who frequently haul gear or passengers in the third row, the choice may hinge on which interior layout best fits their typical load and access preferences. The MDX often feels more adaptable for varying cabin configurations, while the QX60 emphasizes a calm, spacious highway experience.

Driving dynamics, efficiency, and value

Beyond size, the driving character and efficiency of each model inform how big they feel in daily use. While both are built for comfort and daily practicality, they pursue different strengths.

Performance balance and ride quality

Both the Acura MDX and Infiniti QX60 offer V6 powertrains and all-wheel-drive options, but their tuning prioritizes different experiences. The MDX tends to deliver sharper handling for a sportier feel in its class, with a focus on responsive steering and a composed ride. The QX60 leans toward a smoother, more serene highway demeanor with an emphasis on comfortable long-distance cruising.

Technology, trims, and overall value

Each model brings its own tech ethos: Acura emphasizes driver-assistance suites and a driver-centric interface, while Infiniti prioritizes quiet cabin refinement and a chic, modern interior. Pricing and feature sets vary by year and trim, so exact value depends on the chosen configuration, optional packages, and current incentives.

In terms of ownership practicality, expect similar maintenance profiles and resale dynamics for mid-range trims, with differences arising mainly from brand-specific reliability perceptions and depreciation curves over time.

Summary

Short answer: the Infiniti QX60 is typically the bigger vehicle, offering a longer exterior footprint and a roomier highway presence, while the Acura MDX remains a close, highly practical alternative with a slightly more compact footprint and flexible interior layouts. For buyers, the decision hinges on whether a larger overall size and a cruising-focused ride (QX60) or sharper handling and versatile cabin arrangements (MDX) better fit daily needs.

Bottom line: both are solid, three-row luxury SUVs, and the right pick depends on which aspects of size, interior practicality, and driving character matter most to you. Always verify current model-year specifications and test-drive both to confirm which feels roomier and more tailor-made for your family’s routine.

Summary recap

- Infiniti QX60 generally offers a larger exterior footprint than the Acura MDX.

- Interior space and seating configurations differ, with each model favoring different cabin layouts.

- Driving feel shifts: MDX toward a sportier, more dynamic ride; QX60 toward a smooth, comfortable highway experience.

- For the final decision, compare current model-year specs, sit in both cabins, and consider garage access, cargo needs, and daily driving priorities.

How big is the INFINITI QX60 compared to the Acura MDX?

Acura MDX dimensions are about as close in length as possible. The INFINITI QX60 is 198.2 inches long, and the Acura MDX is 198.4 inches long. The difference is how the automakers use the space. The INFINITI QX60 has a total passenger volume of 140.6 cubic feet, while the Acura MDX has 139.1 cubic feet.

What is the common problem on INFINITI QX60?

Common Infiniti QX60 problems include issues with the CVT transmission, such as hesitation and failure, especially in earlier models. Other frequent complaints involve engine noises like a timing chain rattle, electrical problems with the forward emergency brake and other sensors, and various interior issues like water leaks, a non-functional wireless charging pad, and sometimes uncomfortable third-row seating.
 
This video discusses common problems with the Infiniti QX60, including transmission issues and other potential problems: 53sHey, ask your dadYouTube · May 14, 2025
Powertrain

• CVT Transmission: Hesitation, jerking, lurching, and sudden loss of power are commonly reported, particularly in models with the continuously variable transmission (CVT). 
• Timing Chain: A rattling or tapping noise from the engine, especially on cold starts, can indicate a timing chain problem and potential failure. 
• Engine Stalling: Some models have experienced engine stalling or feeling like the vehicle is going into neutral. 

This video shows an example of a transmission issue in the Infiniti QX60: 1mColin CYouTube · May 13, 2017
Electrical and sensor issues

• Forward Emergency Brake: The forward emergency brake light may flash randomly or the system may apply brakes unnecessarily. 
• Reverse Camera: The reverse camera alarm may malfunction or the screen may go blank. 
• Wireless Charger: The wireless charging pad can overheat phones, causing the charging cycle to restart every 30 minutes. 
• TPMS: Some owners report issues with the Tire Pressure Monitoring System (TPMS) not working. 

Interior and body

• Water Leaks: Leaks have been reported in various areas, including the back and front passenger areas, which can lead to rust. 
• Cracked Console: Some owners have reported a cracked center console. 
• Moldy Smell: A moldy smell can occur when starting the climate control system. 
• Seating: The third-row seating is described by some as cramped and uncomfortable. 

Brakes

• Squealing: Worn brake pads can cause a squealing or grinding noise. 
• Unresponsive Brakes: Some drivers have experienced unresponsive brakes at low speeds, even with the pedal pressed firmly. 

Other

• Wireless Charging Pad: It can overheat and fail to charge phones properly.
• Interior Trim and Stitching: Some owners have criticized the interior, noting that the stitching colors are mismatched and the gauges look like they belong to a less expensive Nissan model. 

What cars are comparable to the INFINITI QX60?

The main competitors to the Infiniti QX60 are other luxury three-row SUVs like the Acura MDX, Volvo XC90, and Cadillac XT6. Other vehicles considered rivals include the Buick Enclave and Lincoln Nautilus. 
You can watch this video to compare the Infiniti QX60 with the Acura MDX: 59sBen HardyYouTube · May 21, 2024
Direct competitors

• Acura MDX: A frequently cited competitor known for luxury, performance, and technology.
• Volvo XC90: Another standout contender that offers a blend of comfort, performance, and features.
• Cadillac XT6: A competitor in the luxury large SUV segment. 

Other competitors

• Buick Enclave: Often mentioned as a competitor in the same class. 
• Lincoln Nautilus: Another vehicle that is frequently compared to the QX60. 

You can watch this video to compare the Infiniti QX60 with the Nissan Pathfinder: 1mHawkeye RidesYouTube · Jun 29, 2025
Related models

• Nissan Pathfinder: The QX60 shares a platform with the Pathfinder, making it a close comparison, though the QX60 is positioned in the luxury market. 

Which SUV is better, Acura or INFINITI?

However, INFINITI consistently outshines Acura in critical areas, offering a more comprehensive suite of engine options, superior performance features, and advanced technology. With features like ProPILOT Assist and a more comprehensive warranty, INFINITI ensures that you enjoy luxury and peace of mind on every drive.