Luxury Compact SUV

2025 Acura RDX vs. 2025 Infiniti QX55 Comparison

Compact luxury SUVs like the 2025 Acura RDX and Infiniti QX55 are part of the industry’s hottest-selling and most competitive segment. That’s because they offer the prestige of owning a premium-badged vehicle — a perk that at least means better coffee (should be!) at the dealership — along with a high quotient of luxury and tech goodies to make them especially appealing. 

It doesn’t hurt matters when they also look the part, and the RDX and QX55 certainly do. While the Acura opts for a sharply creased, origami-style design, the QX55 is all about soft edges and gentle curves. This includes its tapering tail, a styling flourish meant to give the QX55 a coupe-like profile.  

Of course, we wouldn’t be putting these SUVs through their paces if they had nothing to offer but pretty faces. To find out what else lurks beneath their sheetmetal, let’s explore the highlights of the Acura RDX and Infiniti QX55.

2025 Acura RDX

2025 Acura RDX A-Spec in Urban Grey Pearl

For 2025, the RDX gets a few improvements to the exterior styling. The front end now features a frameless grille with a mesh design. The RDX can be had in one of five trim levels: the base RDX, RDX with Technology package, RDX A-Spec, RDX with Advance package, and RDX A-Spec with Advance package. Standard on all RDX models, Acura’s Super Handling All-Wheel Drive (SH-AWD) system lives up to its lofty name, providing outstanding grip in all types of driving conditions. 

On the inside, the center console enjoys a slight makeover to provide more storage while making it easier to access the wireless charging pad. Standard features include a 10.2-inch infotainment display, heated front seats, wireless smartphone connectivity, Amazon Alexa, and a wide range of driver aids. Similar to the Infiniti QX55, the Acura RDX is a luxury vehicle with a value-conscious approach that makes it less expensive than many direct rivals. 

Acura RDX Highlights 

Feisty engine: During road tests, we’ve enjoyed wringing the 272-horsepower turbocharged 4-cylinder for all its worth and gently cruising in a calmer frame of mind. Paired with a refined 10-speed automatic transmission that provides seamless shifts, this is one enticing powertrain.

Adaptive suspension: Starting with the Advance package, the Acura RDX comes with an adaptive suspension system. Capable of monitoring various conditions and noting which drive mode has been selected, it sharpens the handling or provides a smoother ride. Basically, it takes the already admirable dynamics of the RDX to a higher level. 

Technology package: We like that Acura doesn’t skimp on standard features. However, we also believe the Technology package represents a great bargain. For roughly $2,500 extra, it adds upgraded leather upholstery, front and rear parking sensors, wireless device charging, navigation, a 12-speaker audio system, and GPS-linked climate control. Go on, splurge.

Check this week’s Fair Purchase Price or see the RDX models for sale near you. 

2025 Infiniti QX55

2024 Infiniti QX55 in Radiant White with shrubs in the background.

2024 model shown

The QX55 enters the 2025 model year unchanged from last year. It is available in three trims: Luxe, Essential, and Sensory. Why is something “essential” fancier than something “luxe”? Well, we’ll leave that explanation to the marketing gurus. To its credit, while the Infiniti’s price is higher than that of the Acura RDX, the QX55 is bursting with standard features. 

Proving it lives up to its name, a memory driver’s seat and wireless device charging are included on the base Luxe model. Every version of the QX55 comes with a 268-hp turbocharged 4-cylinder that sends power to all four wheels via a continuously variable automatic transmission (CVT).   

Infiniti QX55 Highlights

ProPilot Plus: This is an adaptive cruise control system with lane centering and stop/go capability. It’s not a hands-free driving aid, though it does alleviate some of the fatigue of long-distance drives. It’s standard on every trim.

Adjustable rear seats: While there is a price to be paid in terms of interior space due to the QX55’s coupe-like looks, a sliding and reclining rear seat allows you to free up more headroom or legroom, if needed. You won’t find that in the Acura RDX.

Surround-view parking camera: Considering how pretty the QX55’s standard 20-inch alloys are to behold, it seems a shame to risk curbing them while parallel parking. Infiniti must have been thinking along similar lines because a surround-view parking camera is another standard feature.

Check this week’s Fair Purchase Price or see the QX55 models for sale near you.

Similarities

The Acura RDX and Infiniti QX55 make a push for luxury car shoppers looking for something as big on value as it is style. In terms of their dimensions, they have nearly identical cargo space, headroom, and rear legroom. 

Even their warranties are closely matched, as are their EPA-rated combined fuel economy averages in a mix of city and highway driving. Dare we even mention they have one shared flaw, too? The RDX uses a touchpad on the center console to control infotainment functions. A touchscreen would be a better solution. Yet, while the QX55 goes the touchscreen route, its dual-screen layout looks dated in comparison to many rivals.   

Pricing

New 2025 Acura RDX Prices

Retail Price
Fair Purchase Price (92620)
$46,050
$42,826
$48,650
$45,322
$51,650
$47,807
$53,800
$50,410
$55,800
$51,983

New 2025 INFINITI QX55 Prices

Retail Price
Fair Purchase Price (92620)
$51,500
$47,611
$56,450
$52,622
$60,000
$55,488

The Kelley Blue Book Fair Purchase Price for any individual used vehicle can vary greatly according to mileage, condition, location, and other factors. The prices here reflect what buyers are currently paying for New 2025 Acura RDX vehicles and New 2025 INFINITI QX55 vehicles in typical condition when purchasing from a dealership. These prices are updated weekly. The manufacturer’s suggested retail price (MSRP) quoted includes the destination fee, but does not include tax, license, document fees, and options.

Specifications

 2025 Acura RDX 2025 Infiniti QX55
Popular Powertrains    
Engine Turbo 2.0-liter 4-cylinderTurbo 2.0-liter 4-cylinder
Horsepower 272 hp @ 6,500 rpm268 hp @ 5,600 rpm
Torque 280 lb-ft @ 1,600-4,500 rpm280 lb-ft @ 1,600-4,800 rpm
Transmission 10-speed automatic  CVT 
Fuel economy MPG21 city/27 highway/23 combined22 city/28 highway/25 combined 
Specs     
Basic Warranty 4 years/50,000 miles 4 years/60,000 miles 
Powertrain Warranty 6 years/70,000 miles 6 years/70,000 miles 
NHTSA Overall Safety Rating5-Star Not rated
Max Seating Capacity 
Wheelbase 108.3 inches 110.2 inches 
Overall Length 187.4 inches 186.3 inches 
Width 74.8 inches 74.9 inches 
Height 65.7 inches 63.8 inches 
Turning Diameter 38.9 feet 36.4 feet 
Headroom, Front 40.0 inches39.9 inches 
Headroom, Rear38.0 inches 36.9 inches 
Legroom, Front 42.0 inches 39.6 inches 
Legroom, Rear38.0 inches 38.7 inches
Shoulder Room, Front 60.0 inches 57.9 inches 
Shoulder Room, Rear57.0 inches57.1 inches
Cargo Volume 29.5 cubic feet  26.9 cubic feet 

Conclusion

These two compact luxury SUVs are worth consideration thanks to their attractive shapes and expansive lineup of features. In a number of competing models — particularly those from German manufacturers — you could end up spending thousands more to get the same degree of content. 

We’ve pointed out shared quirks with their in-cabin tech, so what gives the Acura RDX the win is its more engaging driving behavior. The Infiniti QX55 looks like it should be such a hoot to drive, except it’s just not as engaging as we’d like. There is a lack of precision in how its transmission operates, and this can translate to lots of engine drone when getting a move on. 

Is it still pretty? Oh yes, very much so. Is the RDX better overall? For most drivers, yes.