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Lexus RX vs Acura MDX


Whether you live in Bedford, Manchester, or Merrimack, New Hampshire, you’re sure to find lots of luxury midsize SUVs out on the road. However, if you’re looking to buy a new car, you’ll want a top-quality product. Two viable options are the 2021 Lexus RX and the 2022 Acura MDX.

Acura decided to forgo the 2021 model year in lieu of a redesigned 2022 model year. Lexus, on the other hand, has continuously made upgrades to the RX over the years with their annual model year releases.

While both the RX and the MDX offer a mix of power, comfort, and technologies, only one can be the right fit for your daily travels around town.

To help you decide which luxury SUV most closely matches your driving needs, we at Ira Lexus of Manchester have created this Lexus RX vs. Acura MDX comparison. Ready so see what these vehicles have to offer? Keep reading and contact us with any questions.

Lexus RX vs Acura MDX: Vehicle Dimensions

When looking for a midsized SUV, you’ll need a vehicle that offers plenty of space for both you and your passengers while also making city travels a breeze.

In terms of exterior dimensions, you may find you’ll have an easier time fitting into tight parking spaces and maneuvering corners in the RX because of its smaller size. The Lexus RX measures 192.5 inches in length, 74.6 inches in width, and 67.7 inches in height.

The Acura MDX, on the other hand, measures 198.4 inches in length, 78.7 inches in width, and 67.1 inches in height.

So, because of its smaller size, navigating city streets might be easier in the RX than the MDX, but how do these exterior measurements affect passenger space? Let’s find out!

Interior Dimension

Lexus RX

Acura MDX

Headroom (front/rear)

39.4/39.1 inches

38.5/38.1 inches

Legroom (front/rear)

44.1/38 inches

41.6/38.5 inches

Shoulder room (front/rear)

57.8/57.6 inches

61.9/60.3 inches

Hip room (front/rear)

56.6/56.1 inches

59.3/57.8 inches

In terms of dimensions, both models shine in their own way, offering front- and rear-seat passengers plenty of room to stretch out. Due it its larger width, the Acura MDX offers more shoulder room than the Lexus RX, but the RX offers extra legroom in front and more headroom for all passengers.

When deciding between the Lexus RX vs. Acura MDX, you’ll need to choose whether you want to have an easy time parking with the RX or if you want more shoulder room and hip room for passengers with the Acura MDX.

Lexus RX vs Acura MDX

2021 RX vs 2022 MDX: Performance Specs

The 2021 Lexus RX and the 2022 Acura MDX have two things in common in terms of performance: powerful V6 engines and comfortable rides.

A standard 3.5L V6 engine comes standard on both models. However, while both the RX and the MDX offer engines of the same size, one offers more power that allows for a more thrilling ride. Let’s take a closer look!

Lexus RX vs Acura MDX Engine Specs





295 HP

290 HP


268 lb-ft

267 lb-ft

While an additional five horsepower may not seem like much at first, this extra power makes it possible for the RX to go from 0 to 60 MPH in 7.7 seconds. Plus, the engine of the RX is mated to an 8-speed automatic Electronically Controlled Transmission that provides seamless shifting and great fuel economy.

In fact, the RX achieves an EPA-estimated 20 city/27 highway MPG, so you can drive farther, longer.

The MDX comes standard with a 10-speed automatic transmission. Despite having a larger transmission, the MDX falls short in fuel economy. This SUV achieves an EPA-estimated 19 city/26 highway MPG. So, with its 18.5-gallon fuel tank, you can travel up to 481 miles on a tank of gas. That being said, with the RX, you can travel up to 518 miles.

Lexus RX vs Acura MDX: Interior Amenities

Since the Lexus RX and the Acura MDX are midsize SUVs, they both offer plenty of room for everyone on board. In the RX, you’ll find seating for five, with the available RX L trim fitting seven inside. The MDX, meanwhile, comes standard with seating for seven.

However, both SUVs offer lots of amenities to help keep everyone happy. Premium amenities found in both SUVs include:

  • Available heated and ventilated front seats
  • Standard leatherette upholstery with optional leather-trimmed seating
  • Available LED ambient interior illumination

The optional heated and ventilated seats mean you can travel in year-round comfort no matter what the outside temperature, while the available LED ambient interior illumination helps you set the mood for your commute.


Lexus RX vs Acura MDX

Lexus RX vs Acura MDX: Technologies

Not only do these vehicles have lots of creature comforts available, but they offer tons of high-tech features as well. These include HD Radio™ and SiriusXM® Satellite Radio––both standard in the RX and the MDX—so you can listen to your favorite songs and discover new ones.

Want to listen to your favorite song on repeat? Use the standard Apple CarPlay® or Android Auto™ integration features to listen to the playlist you want to hear while on the go. Then, use your SUV’s touchscreen display to filter through your music library.

The 2021 RX then offers Lexus Enform Destination Assist. The benefits of the Lexus Enform Destination Assist system include:

  • 24-hour access to a live response center agent
  • Search for general points of interest nearby
  • Narrow down your search by type of restaurant or location
  • Receive directions on your optional Navigation System

That way, you can get crystal-clear directions to navigate the town without having to take your eyes off the road.

Unfortunately, the 2022 MDX doesn’t offer such a feature.

RX vs MDX: Advanced Safety Features

While having entertainment features is fun, the most important thing your SUV needs equipped is advanced safety features. That way, you can transport your family from Point A to Point B as safely as possible. It means you can also feel completely confident behind the wheel, too.

Both SUVs come equipped with cameras and sensors that monitor a range around your vehicle. When a potential hazard is detected, you’ll receive an alert. That way, you can make any necessary adjustments to avoid a collision. Under certain circumstances, some features may provide automatic assistance—like automatic braking, speed adjustments, and lane centering—to help keep you on track.

Similar features offered with the RX and the MDX include:

  • Pre-Collision System with Pedestrian Detection
  • Lane Departure Alert with Steering Assist
  • All-Speed Dynamic Radar Cruise Control
  • Blind Sport Monitor with Rear Cross Traffic Alert

Thanks to these features, you can feel completely confident each time you get behind the wheel of your luxury SUV.




Lexus RX vs Acura MDX

Acura MDX vs Lexus RX: Verdict

There’s no doubt the 2022 Acura MDX is an impressive SUV. However, the 2021 Lexus RX offers more in terms of power, space, and tech.

If you want to experience this vehicle for yourself near Bedford, Manchester, or Merrimack, NH, don’t wait. Schedule a test drive at Ira Lexus of Manchester today!

Ira Lexus of Manchester 42.955522, -71.481662.