2025 BMW X3 vs 2026 Acura RDX

$49,950 · Crossover

$45,100 · Crossover

Comparison Overview

The 2025 BMW X3 injects refined efficiency into the premium compact SUV arena, boasting an impressive 29 MPG combined, powered by 255 hp. It stands ready to carve corners with a poised demeanor expected of the badge. Conversely, the 2026 Acura RDX leans into raw, immediate punch, unleashing 272 hp from its powertrain, prioritizing spirited output despite sipping fuel less efficiently at 23 MPG combined. The Acura tempts buyers with a significantly lower entry point at $45,100 compared to the X3's $49,950. While the X3 offers slightly more hauling capability with 31.5 cubic feet of cargo space versus the RDX's 29.5 cubic feet, the real tension lies in performance versus economy: the X3 saves $4,850 upfront and delivers 6 MPG more on the highway, while the RDX grabs the horsepower crown by 17 hp.

Size Comparison

Performance

Fuel Efficiency

Full Specifications

Our Verdicts

🚗 Best for Commuters

2025 BMW X3

The 2025 BMW X3 offers a significant 6 MPG advantage in combined fuel economy, directly lowering ownership costs for daily driving.

👨‍👩‍👧‍👦 Best for Families

2025 BMW X3

The BMW X3 provides slightly more utility with 31.5 cubic feet of cargo capacity compared to the RDX's 29.5 cubic feet.

🏎️ Best for Enthusiasts

2026 Acura RDX

The 2026 Acura RDX offers a higher peak output of 272 horsepower, promising slightly more immediate acceleration.

💰 Best Value

2026 Acura RDX

The 2026 Acura RDX undercuts the rival by $4,850, making its performance accessible at a lower starting MSRP.

Choose the BMW X3 if...

Long-distance highway driving efficiency is paramount, given its 33 MPG highway rating.
Buyers are willing to pay $4,850 more upfront for better fuel economy credentials.
A need for maximum cargo utility, benefiting from 31.5 cubic feet of space, exists.

Choose the Acura RDX if...

Prioritizing a higher horsepower number (272 hp) and a 10-speed transmission feel.
Seeking the lowest possible initial purchase price in this premium segment ($45,100).
Fuel economy of 23 MPG combined is acceptable, given the premium unleaded recommendation.

Key Dimensions

Dimension	BMW X3	Acura RDX
Length	187.2"	187.4"
Width	75.6"	74.8"
Height	65.4"	65.7"
Wheelbase	112.8"	108.3"

Features Comparison

Safety

Feature	BMW	Acura
Blind Spot Monitor	✓	✓
Lane Departure Warning	✓	✓
Driver Attention Alert	✓	—
Pre-Collision Safety System	✓	✓
Post-Collision Safety System	✓	✓
Dual Front Side-Mounted Airbags	✓	✓
Front Head Airbags	✓	✓
Rear Head Airbags	✓	✓
Passenger Airbag Occupant Sensing Deactivation	✓	✓
Electronic Stability Control	✓	✓
Traction Control System	✓	✓
LATCH System	✓	✓
Rear Door Child Safety Locks	✓	✓
Anti-lock Brakes (ABS)	4-Wheel	4-Wheel
Brake Drying	✓	—
Front Ventilated Disc Brakes	✓	✓
Rear Ventilated Disc Brakes	✓	—
Brake Preparation System	✓	—
Brake Assist	✓	✓
Tire Pressure Monitoring System	✓	✓
Automatic Headlights	✓	✓
Headlight Delay-Off	✓	—
LED Headlights	✓	✓
Daytime Running Lights	✓	✓
Integrated Turn Signal Mirrors	✓	✓
Front Headrests	2	2
Front Height Adjustable Headrests	✓	✓
Rear Headrests	3	3
Rear Height Adjustable Headrests	✓	✓
Rear Center 3-Point Seatbelt	✓	✓
Anti-Theft Alarm System (Remote)	✓	✓
Engine Immobilizer	✓	✓
Lane Keeping Assist System	—	✓
Rear Cross Traffic Alert	—	✓
Rear Solid Disc Brakes	—	✓

Engine

Feature	BMW	Acura
Base Engine Displacement	2.0 L	2.0 L
Number of Cylinders	inline 4	inline 4
Base Engine Type	mild hybrid	gas
Horsepower	255 hp @ 4700 rpm	272 hp @ 6500 rpm
Torque	295 lb-ft @ 1600 rpm	280 lb-ft @ 1600 rpm
Number of Valves	16	16
Camshaft Type	Double overhead cam (DOHC)	Double overhead cam (DOHC)
Variable Valve Timing	Variable	Variable
Fuel Injection Type	✓	✓

Drive Train

Feature	BMW	Acura
Transmission Type	8-speed shiftable automatic	10-speed shiftable automatic
Drivetrain Type	all wheel drive	all wheel drive
Center Differential Type	Limited Slip	—
Hill Descent Control	✓	—
[object Object]	—	✓
[object Object]	—	✓

Fuel

Feature	BMW	Acura
Fuel Type	premium unleaded (required)	premium unleaded (recommended)
EPA Fuel Economy (City/Highway)	27/33 MPG	21/27 MPG
EPA Fuel Economy (Combined)	29 MPG	23 MPG
EPA Driving Range (City/Highway)	464.4/567.6 mi.	359.1/461.7 mi.
Fuel Tank Capacity	17.2 gal.	17.1 gal.

Comfort & Convenience

Feature	BMW	Acura
Push Button Start	✓	✓
Tilt and Telescopic Steering Wheel	✓	✓
Transmission Controls on Steering Wheel	✓	✓
Cruise Control on Steering Wheel	✓	✓
Audio Controls on Steering Wheel	✓	✓
Electric Power Steering	✓	✓
Rear View Camera	✓	✓
Cruise Control	✓	—
Universal Remote Transmitter	✓	✓
Front Cupholders	✓	✓
Rear Cupholders	✓	✓
Front Door Pockets	✓	✓
Rear Door Pockets	✓	✓
Front Seatback Storage	✓	✓
Dual Zone Climate Control	✓	✓
Rear Ventilation Ducts	✓	✓
Interior Air Filtration	✓	✓
Dual Vanity Mirrors	✓	✓
Turn Signal Indicators in Mirrors	✓	✓
Adaptive Cruise Control	—	✓
Overhead Console with Storage	—	✓
Leather Steering Wheel	—	✓
Auto-Dimming Rearview Mirror	—	✓

In Car Entertainment

Feature	BMW	Acura
Infotainment Display	14.9 in	10.2 in
AM/FM Stereo	✓	✓
Android Auto (Wired)	✓	—
Apple CarPlay (Wired)	✓	—
USB Port	✓	✓
USB Port with External Media Control	✓	✓
Satellite Radio	✓	✓
Satellite Radio Trial Period	12 months	3 months
Speaker System	—	9
Subwoofer Count	—	1
Android Auto (Wireless)	—	✓
Apple CarPlay (Wireless)	—	✓
Speed Sensitive Volume Control	—	✓

Power Feature

Feature	BMW	Acura
One-Touch Power Windows	4	4
Keyless Entry	✓	✓
Heated Mirrors	✓	✓
Moonroof Type	—	1st Row Power Glass
Reverse Tilt Passenger Mirror	—	✓

Frontseats

Feature	BMW	Acura
Front Leg Room	40.2 in.	42.0 in.
Front Shoulder Room	57.9 in.	60.0 in.
Seat Material: Leatherette	✓	✓
Front Seat Type: Sport	✓	—
Driver Seat Height Adjustment	✓	✓
Driver Seat Lumbar Support	Power	Power
Driver Seat Memory Settings	2	—
Passenger Seat Height Adjustment	✓	✓
Passenger Seat Lumbar Support	Power	Power
Driver Seat Heating	Multi-level	Multi-level
Passenger Seat Heating	Multi-level	Multi-level
Front Head Room	—	40.0 in.
Front Hip Room	—	55.0 in.
Front Seat Type: Bucket	—	✓
Driver Seat Power Adjustments	—	8-way
Passenger Seat Power Adjustments	—	8-way

Rearseats

Feature	BMW	Acura
Rear Leg Room	36.3 in.	38.0 in.
Rear Shoulder Room	55.7 in.	57.0 in.
Split-Folding Rear Seatback	✓	✓
Folding Center Armrest	✓	✓
Rear Head Room	—	38.0 in.
Rear Hip Room	—	50.0 in.

Tires and Wheels

Feature	BMW	Acura
Wheel Finish	Painted Alloy	Painted Alloy
Wheel Size	19 x 8.5 in	19 x 8.0 in
Tire Type	All Season	All Season
Tire Size	✓	235/55R19
Spare Tire Type	Temporary	Temporary
Spare Tire Location	Inside Mounted	Inside Mounted

Suspension

Feature	BMW	Acura
Four-Wheel Independent Suspension	✓	✓
Front Stabilizer Bar	✓	✓
Rear Stabilizer Bar	✓	✓

Warranty

Feature	BMW	Acura
Basic Warranty	4 yr./ 50000 mi.	4 yr./ 50000 mi.
Drivetrain Warranty	4 yr./ 50000 mi.	6 yr./ 70000 mi.
Corrosion/Rust Warranty	12 yr./ unlimited mi.	5 yr./ unlimited mi.
Roadside Assistance	4 yr./ unlimited mi.	4 yr./ 50000 mi.
Complimentary Scheduled Maintenance	3 yr./ 36000 mi.	1 yr./ 12000 mi.

Frequently Asked Questions

Common questions about comparing the 2025 BMW X3 and 2026 Acura RDX.

How significant is the MPG difference between these two all-wheel-drive crossovers?

The difference is substantial; the 2025 BMW X3 achieves 29 MPG combined while the 2026 Acura RDX manages only 23 MPG combined, a six-point difference favoring the BMW.

Do both vehicles require premium gasoline for optimal performance?

Yes, the 2025 BMW X3 explicitly requires premium unleaded fuel to achieve its rated 255 hp. The 2026 Acura RDX recommends premium unleaded, suggesting its 272 hp performance is best accessed with higher octane fuel.

Which vehicle offers a greater advantage in physical size dimensions?

Both vehicles are nearly identical in length (187.2 vs 187.4 inches), but the 2025 BMW X3 is slightly wider at 75.6 inches compared to the RDX's 74.8 inches.

Does the lower price of the Acura translate to less power?

No, despite starting $4,850 cheaper, the 2026 Acura RDX actually produces 17 more horsepower than the 2025 BMW X3.

How does the transmission system differ between the X3 and the RDX?

The 2025 BMW X3 utilizes an 8-speed shiftable automatic transmission for gear changes. The 2026 Acura RDX steps up the ratio count with a 10-speed shiftable automatic.