Looking for a luxury SUV that drives great? Acura, part of Honda, has cool SUVs like the MDX and RDX.

The MDX, Acura’s big SUV since 2000, is roomier with three rows of seats. [1] It fits seven people. But the RDX, a smaller SUV introduced in 2006, only has two rows and seats five. [2]

Here’s the noticeable difference: the MDX has more space for stuff. So, if you need to carry lots of things or have a big family, the MDX might be better for you.

So, let’s explore the disparities between the Acura MDX and RDX to gain a clearer comprehension of their distinctive features.

Size and Seating Capacity

The MDX and RDX SUVs differ mainly in size and seating. AcuraLaval mentioned, the MDX is larger, seating up to 7, while the RDX is smaller, accommodating up to 5. [3] The MDX has extra legroom and cargo space, great for bigger families or those needing more luggage room.

On the other hand, the RDX is more compact, making it easier to handle in tight spots or smaller parking areas. It suits individuals or small families not needing as much seating or cargo space.

The MDX measures 196.2 inches in length, 77.7 inches in width, and 67.4 inches in height, while the RDX measures 186.7 inches long, 74.8 inches wide, and 65.7 inches high. This makes the MDX longer and taller, providing more space and seats.

Inside, the MDX offers more legroom in the front and second-row seats and a huge 71.4 cubic feet of storage with folded seats. The RDX provides up to 58.9 cubic feet of cargo space with folded rear seats.

Power and Performance

Engines make the big difference between the two. PhillSmithAcura reveal, the MDX has a stronger 3.5-liter V6 engine, giving me more power at 290 horsepower and 267 lb-ft of torque. [4] It’s great for heavier loads and towing due to its 9-speed automatic transmission.

As for the RDX, it boasts a compact yet robust turbocharged 2.0-liter 4-cylinder engine. This engine delivers an impressive output of 272 horsepower along with 280 lb-ft of torque. Despite its size, it feels agile and fun to drive, especially with its 10-speed automatic transmission.

Fuel-wise, the RDX wins with better mileage: up to 22 MPG in the city and 28 MPG on highways. The MDX, with its bigger engine, gets slightly lower at up to 19 MPG in the city and 26 MPG on highways.

Ride and handling-wise, the MDX feels more stable and comfortable, while the RDX feels more nimble and sporty. Both have Acura’s All-Wheel Drive systems for better traction.

Technology and Features

The Acura MDX and RDX have different cool stuff inside. The MDX has fancier tech and more luxury things, while the RDX keeps it simple with the basics.

The MDX has two screens—one big and one smaller. It’s easy to use and has things like Apple CarPlay, Android Auto, and a great sound system. It also helps with emergencies and has live traffic updates.

The MDX feels luxurious with comfy leather seats, heated and cooled front seats, and a big sunroof. It can do things like open the trunk automatically, fold the mirrors, and let you start the car without a key. There’s even a huge screen in the back for entertainment.

The RDX has a smaller screen but still has Apple CarPlay, Android Auto, and more. It’s got basics like a power trunk, heated front seats, and a sunroof.

Both cars can help you drive safely with things like cruise control. The MDX has extra cameras to see all around, while the RDX has a different kind of camera.


The MDX is pricier compared to the RDX but comes with more advanced tech and luxury.

ISeeCars data shows the new Acura MDX costs between $53,157 and $75,257, with used ones going for $49,878 to $72,045. It has a 5-year depreciation of 53.7%. [5]

Meanwhile, the new Acura RDX is priced at $45,747 to $55,630, with used ones at $45,267 to $53,275, showing a 5-year depreciation of 49.3%.

The higher price of the MDX is because it’s larger, has a more powerful engine, and offers extra advanced tech and luxurious features. On the other hand, the RDX serves as a more affordable option for folks looking for a luxury SUV with just the basics.

Comparison Chart

I’ve put together a quick rundown to show the differences between the Acura MDX and RDX:

Specs & feature Acura RDX Acura MDX
Total Length 187.4 in 198.4 in
Wheelbase 108.3 in 113.8 in
Width (incl. mirrors) 74.8 in 78.4 in
Height 65.7 in 67.1 in
Ground Clearance 8.2 in 7.3 in
Seating Capacity 5 7
Cargo Volume 79.8 cu ft 95.0 cu ft
Passenger Volume 104 cu ft 139.1 cu ft
Engine Turbocharged 4-cylinder V6
Horsepower 272 290
Torque 280 lb-ft 267 lb-ft
Infotainment display 9-inch 10.2-inch
Premium audio Standard ELS Studio
Climate control Dual-zone automatic Tri-zone automatic
Moonroof Standard Panoramic
Price More affordable More expensive

When I compare the Acura MDX and RDX, the differences are quite clear. The MDX is bigger and looks stronger with its bold front grille and pronounced body lines. Inside, it’s more spacious, fitting up to seven people and offering extra cargo room. Its tech features a larger screen, better sound system, and more driver-assist tech.

On the other hand, the RDX, though smaller, holds its own. It flaunts a panoramic sunroof, leather seats, and a user-friendly touchscreen compatible with Apple CarPlay and Android Auto.

Under the hood, the MDX boasts a more powerful V6 engine, delivering more power than the RDX’s turbocharged 4-cylinder engine. This means better performance, especially with a full load.

Regarding cost, the MDX is pricier than the RDX. Yet, both offer good value, packing in loads of standard features and tech. It’s all about choosing the size, power, and tech that fit your needs and budget.

MDX Pros and Cons

The Acura MDX is a great choice for those who want lots of space, power, and luxury. Here are the main things to consider:


  • Roomy inside, seating up to seven people quite comfortably.
  • Packs a punch with a strong V6 engine, giving it solid performance.
  • Loaded with cool tech and luxury features like a big sunroof, super comfy seats that heat up or cool down, and a
  • fantastic 10-speaker sound system.
  • Offers Super Handling All-Wheel Drive (SH-AWD), which helps a lot with handling on the road.
  • Holds a strong safety record, securing a five-star overall safety rating.


  • Costs more than the RDX, so it might not fit everyone’s budget.
  • It’s a bit big, which could make it a hassle to park in tight spots.
  • Uses a bit more fuel, with estimates around 19 miles per gallon in the city and 26 on the highway.

RDX Pros and Cons

I’ve had a close look at the Acura RDX, and here’s what I’ve found about this smaller SUV.


  • It’s smaller and lighter, so handling feels more nimble on the road.
  • The turbocharged 4-cylinder engine packs a punch with good acceleration and decent gas mileage—around 22 MPG city and 28 MPG highway.
  • Even though it’s a more affordable option, it still offers some nice basics like a sunroof, heated front seats, and a 9-speaker sound system.
  • Price-wise, it’s easier on the wallet compared to the MDX, making it appealing to a wider range of buyers.
  • Safety features like forward collision warning, automatic emergency braking, and lane departure warning are available, adding peace of mind.


  • Inside feels a bit snug; it can seat up to five, but space is limited.
  • It lacks the fancy tech and luxury perks found in the MDX.
  • When it comes to towing, it can handle only up to 1,500 pounds, less than the MDX.
  • It’s not as powerful as the MDX, so you might feel a slight dip in horsepower and torque.
Which Model is Better Suited for Certain Types of Drivers?

Deciding between the Acura MDX and RDX comes down to what you need. Here’s my take:

  • For larger groups: If you need more space and seats, the MDX’s third row is a win over the RDX’s five-seat limit.
  • Performance buffs: The MDX is the go-to with its stronger engine and better handling, thanks to the V6 and SH-AWD system. It’s a step ahead of the RDX in acceleration and road grip.
  • Budget-wise: The RDX is a more pocket-friendly choice without sacrificing much. It’s cheaper than the MDX, catering to a wider range of buyers.
  • City driving: Maneuvering through city streets is easier with the RDX’s smaller size. The MDX’s bulk might make it trickier to navigate in urban areas.

In short, the Acura MDX and RDX are great SUVs but cater to different drivers. The MDX is bigger, fancier, and packs a powerful engine, while the RDX is smaller, more budget-friendly, and fuel-efficient. Your choice should depend on your budget, space needs, and preferred features.

To find the right fit, test-driving both is key. It helps you feel how comfy they are and how well they suit your driving style. That hands-on experience will guide you to the SUV that fits you best.