VS
At a Glance
Power
393hp @ 5200
260hp @ 5600
Torque
428lb-ft @ 1900
277lb-ft @ 2000
Fuel
28 mpg est.
22 mpg est.
Towing
4850lbs
5000lbs
Engine
3.0 L/183ci
2.4 L/146ci
Choosing between the BMW X3 and the Subaru Ascent is one of the most common decisions car buyers in the United States face. The BMW X3 delivers 393hp @ 5200 while the Subaru Ascent produces 260hp @ 5600. On fuel, the X3 returns 28 mpg est. while the Ascent uses 22 mpg est. — important in a market where fuel prices change monthly. Pricing starts at $64,700 for the X3 and $40,795 for the Ascent. Both vehicles have their merits. The right choice depends on your priorities: fuel economy, performance, towing ability, safety features or total cost of ownership. This comparison covers every specification available so you can make an informed decision.
Specification
BMW X3M50 xDrive Sports Activity Vehicle 2025 - From $64,700
Subaru AscentPremium 8-Passenger 2026 - From $40,795
Performance
Power Output (hp)
393hp @ 5200
260hp @ 5600
Torque (lb-ft)
428lb-ft @ 1900
277lb-ft @ 2000
Engine & Drivetrain
Engine Capacity
3.0 L/183ci
2.4 L/146ci
Engine Layout
Inline
—
Cylinders
6
4
Fuel Type
—
Gasoline
Forced Induction Device
Turbocharged
Turbocharged
Transmission
Automatic
Automatic
Number of Gears
8
—
Drive Wheels
All Wheel Drive
All Wheel Drive
Fuel Economy
Fuel Economy (Combined, est.)
28 mpg est.
22 mpg est.
Fuel Economy - City (mpg)
25mpg
19mpg
Fuel Economy - Highway (mpg)
30mpg
26mpg
Fuel Tank Capacity (gal)
17.2gal
19.3gal
Dimensions
Length (in)
187.2in
196.8in
Width (in)
75.6in
76in
Height (in)
65.4in
71.6in
Wheelbase (in)
112.8in
113.8in
Curb Weight (lbs)
4535lbs
4449lbs
Towing & Payload
Towing Capacity (lbs)
4850lbs
5000lbs
Safety
ABS
✓ Standard
✓ Standard
Brake Assist
✓ Standard
✓ Standard
Stability Control
✓ Standard
✓ Standard
Traction Control
✓ Standard
✓ Standard
Driver Airbag
✓ Standard
✓ Standard
Passenger Airbag
✓ Standard
✓ Standard
Side Airbags Front
✓ Standard
✓ Standard
Curtain Airbags
✓ Standard
✓ Standard
Features & Tech
Air Conditioning
✓ Standard
✓ Standard
Climate Control
✓ Standard
✓ Standard
Cruise Control
✓ Standard
✓ Standard
Adaptive Cruise Control
✓ Standard
✓ Standard
Bluetooth
✓ Standard
✓ Standard
Backup Camera
✓ Standard
✓ Standard
Rear Parking Aid
✓ Standard
—
Sunroof
✓ Standard
—
Heated Seats
✓ Standard
✓ Standard
Power Seat Adjustment
✓ Standard
✓ Standard
Keyless Entry
✓ Standard
✓ Standard
Trailer Hitch
✓ Standard
✓ Standard
Alloy Wheels
✓ Standard
✓ Standard
The Verdict
Which Wins?
Overall Winner
Tie
2 / 4 categories
Performance
X3
Fuel Economy
X3
Value
Ascent
Practicality
Ascent
Pros & Cons
BMW X3
Better fuel economy (28 mpg est.)
Higher starting price
Subaru Ascent
Lower starting price ($40,795)
Higher towing capacity (5000lbs)
Higher fuel consumption (22 mpg est.)
Frequently Asked Questions
Which is more fuel efficient, the X3 or Ascent?
The X3 gets 28 mpg est. and the Ascent gets 22 mpg est. on the combined cycle. The X3 is the more fuel-efficient choice. In real-world conditions with a mix of highway and urban driving, actual figures will be slightly higher.
Which has more power, the X3 or Ascent?
The X3 produces 393hp @ 5200 and 428lb-ft @ 1900 of torque while the Ascent delivers 260hp @ 5600 and 277lb-ft @ 2000 of torque. The X3 is the more powerful option.
What is the price difference between the X3 and Ascent?
The X3 starts from $64,700 and the Ascent from $40,795. The Ascent is cheaper by $23,905 at this variant level. Final on-the-road pricing varies by dealer and specification.
Which has a higher towing capacity, the X3 or Ascent?
The X3 has a braked towing capacity of 4850lbs and the Ascent can tow 5000lbs. Always verify towing limits in the owner's manual before hitching a trailer.
Should I buy the X3 or the Ascent?
It depends on your priorities. If fuel economy matters most, check the mpg figures above. If you need towing capacity, compare the towing ratings. For day-to-day driving - commutes, school runs and highway trips - consider ground clearance, service network coverage, and total cost of ownership including insurance and maintenance. Use the spec tables above to compare every detail before making your decision.