This page covers the complete technical specifications for the 2026 BMW X3. For a plain-language tour of the model, see our 2026 BMW X3 overview, and for a trim-by-trim breakdown of the 30 xDrive and M50 xDrive, see our X3 trims compared guide. Specifications below are for the U.S.-market X3 sold and serviced at BMW of Napa Valley in Fairfield, CA, with EPA-estimated and "up to" figures qualified where BMW notes them. Shoppers across the North Bay and Solano County can confirm current inventory in person.

Engine Specifications

Both 2026 X3 models pair a BMW TwinPower Turbo gasoline engine with 48-volt mild-hybrid technology and an eight-speed automatic transmission, with BMW xDrive all-wheel drive standard. There is no rear-drive X3 in the U.S. lineup.

X3 30 xDrive — 2.0L TwinPower Turbo I4

• 255 horsepower at 4,700 rpm
• 295 lb-ft of torque at 1,600 rpm
• 2.0-liter turbocharged inline-4 with 48V mild-hybrid assist; DOHC, 16 valves
• 8-speed automatic, BMW xDrive all-wheel drive standard
• 0-60 mph in 6.0 seconds (BMW estimate)

X3 M50 xDrive — 3.0L M TwinPower Turbo I6

• 393 horsepower at 5,200 rpm
• 428 lb-ft of torque at 1,900 rpm
• 3.0-liter turbocharged inline-6 with 48V mild-hybrid technology; DOHC, 24 valves
• 8-speed automatic with center and rear limited-slip differential, BMW xDrive standard
• 0-60 mph in 4.4 seconds (BMW estimate)

Both engines require premium unleaded fuel and draw from a 17.2-gallon tank.

Exterior Dimensions

• Length: 187.2 in
• Width without mirrors: 75.6 in · with mirrors: 83.9 in (30 xDrive) / 84.2 in (M50)
• Height: 65.4 in
• Wheelbase: 112.8 in
• Ground clearance: 8.5 in (30 xDrive) / 8.3 in (M50)
• Turning circle: 40.0 ft
• Curb weight: 4,176 lbs (30 xDrive) / 4,535 lbs (M50)

Interior Dimensions

The X3 seats five across two rows, with a 40/20/40-split-folding rear seatback. Leg and shoulder room are identical across both trims:

Measurement	Front	Rear
Leg room	40.2 in	36.3 in
Shoulder room	57.9 in	55.7 in
Head room	40.5 in*	38.2 in*

*Head room of 40.5 in front and 38.2 in rear is the figure BMW publishes for the M50 xDrive, which has a standard panoramic moonroof; a separate head-room figure for the 30 xDrive is not published. Cargo and the full interior deep-dive live on our X3 cargo space page.

Capacity and Capability

• Cargo volume: 31.5 cu ft behind the rear seats; up to 67.1 cu ft with the rear seats folded
• Towing: the AWD X3 30 xDrive is rated to tow up to 4,001 lbs when properly equipped with the conventional, factory-installed trailer hitch; the hitch is a factory option on both trims
• Payload — the gap between each model's GVWR and its curb weight — is published by configuration; confirm the exact figure with the dealership
• Gross vehicle weight rating (GVWR): 5,776 lbs for the M50 and 5,512 lbs for the 30 xDrive

Cargo capability and per-trim load detail are covered on our X3 cargo and capability page.

Wheels, Tires, and Brakes

• X3 M50 xDrive: standard 20 x 10.5-inch alloy wheels on 285/40R20 tires, with 21-inch wheels available on the M50
• X3 30 xDrive: alloy wheels with available upgrades up to 21 inches (wheel and tire packages vary by configuration)
• Brakes: front and rear ventilated disc brakes; M Sport brakes are standard on the M50 xDrive
• A temporary compact spare is included

Fuel Economy and Range

EPA-estimated MPG	City	Highway	Combined
X3 30 xDrive	27	33	29
X3 M50 xDrive	25	30	27

On the 17.2-gallon tank, EPA-estimated highway range works out to roughly 560 miles for the 30 xDrive and about 515 miles for the M50. Both engines use premium unleaded. EPA estimates; your mileage will vary.

Safety and Compliance

Standard driver-assistance and safety equipment on every 2026 X3 includes:

• Active Blind Spot Detection and Lane Departure Warning
• Frontal Collision Warning with City Collision Mitigation
• Active Driving Assistant and Active Protection
• Driver attention alert, pre- and post-collision systems, stability and traction control, 4-wheel ABS
• Standard on every X3: rear-view camera, tire-pressure monitoring and LED headlamps

The available Driving Assistance Professional Package adds higher-level driver aids. A 14.9-inch curved control display with wireless Apple CarPlay and Android Auto is standard on every X3. Confirm current equipment and any package details with the dealership.

What These 2026 BMW X3 Numbers Mean in Practice

Spec numbers start to matter once you translate them into daily life. Here is how the X3's key dimensions play out:

The spec	What it means for you
187.2 in long (about 15.6 ft)	Slots into an ordinary garage bay and ordinary parking stalls with room to spare; shorter than many mid-size SUVs.
83.9-84.2 in wide with mirrors	Mirrors out, it is a snug fit in compact structured-parking stalls; fold the mirrors in tight spots.
40.0 ft turning circle	Tight enough for U-turns on a two-lane road and easy maneuvering in a parking structure.
8.3-8.5 in ground clearance, with xDrive AWD	Clears driveway aprons, lot curbs and a snowy mountain ramp; built for confident all-weather road use, not rock crawling.
36.3 in rear leg room, 31.5/67.1 cu ft cargo	Adults fit behind adults on everyday trips, and the seats fold for bikes, strollers or a weekend's gear.

In a Bay Area market that mixes tight downtown structured parking with steady I-80 commuting and weekend climbs into higher, snowier elevations, the X3's sub-16-foot length and 40-foot turning circle make it easy to place, while 8.5 inches of clearance and standard xDrive on every X3 handle an icy grade without drama.

2026 BMW X3 Specifications FAQs

Explore the 2026 BMW X3