2026 Acura MDX vs. RDX: Seven Seats or Five — Which One Truly Fits Your Household?

Choosing between the Acura MDX and the RDX often comes down to a single question: how many seats does your family really need? Quebec households transporting kids, grandparents, or cottage gear for July getaways will feel the difference the moment they open the rear doors.

Both SUVs share Acura’s mechanical DNA, but they are designed for different lifestyles. One is a seven-seat family hauler; the other is a five-seat SUV tailored for a smaller crew that wants agility without having to manage a third row.

MDX vs. RDX: Key Specifications at a Glance

Seating for Large or Small Families

If your household drives three or more children to their activities, or regularly welcomes grandparents for weekend outings, the MDX's third row is what makes those trips possible. Seven seats provide the peace of mind that no one gets left behind during a family outing.

If it's just you, a partner, and perhaps one child, the RDX's two rows are often more than enough. You get generous front and rear seating without ever having to fold or deploy a third row you would rarely use.

For adult comfort in the back, the RDX offers 1,437 mm of shoulder room, 975 mm of legroom, and 974 mm of headroom—generous figures for a two-row SUV that regularly carries adults. The MDX's second row meets the same demanding family requirements, but its third row is best reserved for children or short trips rather than long hours on the highway.

Cargo Space for Cottage Getaways and Daily Commutes

• Acura RDX: The trunk measures 835 liters with the rear seats up, can reach up to 881 liters in its standard maximum configuration, and expands to 2,260 liters once the second row is folded flat. That is plenty of space for bikes, coolers, and weekend bags.

• Acura MDX: The MDX sacrifices some of this flat cargo space in favor of its third row, but those seats also fold down to clear a wider and longer area when you are hauling camping gear or a stroller instead of passengers.

Households that alternate between full-capacity passenger outings and gear-heavy weekends can easily choose the layout they need depending on the day.

Powertrain and All-Wheel Drive for Quebec Roads

The RDX features a single 2.0-liter turbocharged 4-cylinder engine across all trim levels, developing up to 272 hp and up to 280 lb-ft of torque, with Super Handling All-Wheel Drive (SH-AWD) standard right from the base model. This torque-vectoring system helps the RDX stay stable in changing summer conditions, whether dealing with wet pavement or tight highway on-ramps.

The MDX starts with a 3.5-liter V6 producing 290 hp and 267 lb-ft of torque—a real step up for households that tow trailers or haul heavy loads. Its optional towing package supports up to 3,000 lb (1,361 kg) or 5,000 lb (2,268 kg), well beyond the RDX's 1,500 lb (680 kg) rating. Drivers looking for even more power can opt for the Type S Ultra's 3.0-liter turbo V6, rated at 355 hp and 354 lb-ft. SH-AWD is offered across the entire MDX lineup, including the Type S Ultra.

For a household hesitating between the two models, the question isn't which one is faster; it's determining whether you need the towing capacity and third row of the MDX, or the standard SH-AWD and lighter footprint of the RDX for daily commutes.

Which One Is Right for You?

• Choose the Acura MDX if: You are a family with three or more children, or you regularly drive grandparents and extended family together. The third row and greater towing capacity are the deciding factors here. It is the SUV designed for the household that needs all its seats occupied and plenty of cargo space at the same time.

• Choose the Acura RDX if: You are a couple, a small family with one child, or a daily commuter who wants a compact footprint and standard SH-AWD without having to move up the trim ladder. The five-seat configuration and lower combined fuel consumption make it a more accessible daily companion. Its 9.9 L/100 km rating in combined driving on the base model means less frequent stops at the pump than with the MDX's V6.

Neither SUV is objectively the better choice; they are simply designed for different households. The right model is the one that matches the number of seats your family actually uses on an ordinary Tuesday, not just during a vacation.

Book a Test Drive at Acura Montreal Centre

The MDX and RDX both share Acura's signature SH-AWD mechanics, but they are built around different passenger and cargo needs—from third-row access to standard all-wheel drive across various versions.

Visit Acura Montreal Centre in Montreal to test out the third-row access and folding mechanism on the MDX, confirm the cargo space of the RDX, and find the perfect trim and drivetrain for your household.