BMW X3 vs Mercedes-Benz GLB

Key differences

  • Mercedes-Benz GLB is 122 mm (4.8 in) shorter than BMW X3.
  • BMW X3 makes 25 kW (34 hp) more power than Mercedes-Benz GLB.
  • Mercedes-Benz GLB costs US$7,500 less than BMW X3 (list prices, excl. tax).
Gas

BMW X3

SUV · 2026 · ICE

US$51,300 excl. tax

CA$60,400 excl. tax

from CHF 69,600 incl. tax Trim: X3 20 xDrive

No price listed for United Kingdom yet.

No price listed for Australia yet.

No price listed for Germany yet.

No price listed for Netherlands yet.

No price listed for Norway yet.

No price listed for France yet.

No price listed for Spain yet.

No price listed for Italy yet.

No price listed for Belgium yet.

No price listed for Austria yet.

No price listed for Ireland yet.

No price listed for Sweden yet.

No price listed for Denmark yet.

Full specifications of BMW X3
Gas

Mercedes-Benz GLB

SUV · 2026 · ICE

US$43,800 excl. tax

from €58,584 incl. tax Trim: GLB 250 4MATIC SUV

No price listed for Canada yet.

No price listed for United Kingdom yet.

No price listed for Australia yet.

No price listed for Germany yet.

No price listed for Netherlands yet.

No price listed for Norway yet.

No price listed for France yet.

No price listed for Italy yet.

No price listed for Belgium yet.

No price listed for Austria yet.

No price listed for Ireland yet.

No price listed for Sweden yet.

No price listed for Denmark yet.

No price listed for Switzerland yet.

Full specifications of Mercedes-Benz GLB

Size comparison

Side view size comparison of BMW X3 and Mercedes-Benz GLB
  • Mercedes-Benz GLB is 122 mm (4.8 in) shorter than BMW X3.
  • Mercedes-Benz GLB is 33 mm (1.3 in) taller than BMW X3.
  • Mercedes-Benz GLB has a wheelbase 35 mm (1.4 in) shorter than BMW X3.
Blue solid line: BMW X3; orange dashed line: Mercedes-Benz GLB. The outlines are generic body shapes drawn at one scale, not the real design of any model.

BMW X3 is 4,755 mm (187.2 in) long and 1,661 mm (65.4 in) high, with a wheelbase of 2,865 mm (112.8 in). Mercedes-Benz GLB is 4,633 mm (182.4 in) long and 1,694 mm (66.7 in) high, with a wheelbase of 2,830 mm (111.4 in).

Front view size comparison of BMW X3 and Mercedes-Benz GLB
  • Mercedes-Benz GLB is 86 mm (3.4 in) narrower than BMW X3.
Blue solid line: BMW X3; orange dashed line: Mercedes-Benz GLB.

BMW X3 is 1,920 mm (75.6 in) wide and 1,661 mm (65.4 in) high. Mercedes-Benz GLB is 1,834 mm (72.2 in) wide and 1,694 mm (66.7 in) high.

Rear view size comparison of BMW X3 and Mercedes-Benz GLB
Blue solid line: BMW X3; orange dashed line: Mercedes-Benz GLB.

BMW X3 is 1,920 mm (75.6 in) wide and 1,661 mm (65.4 in) high. Mercedes-Benz GLB is 1,834 mm (72.2 in) wide and 1,694 mm (66.7 in) high.

Compare specifications

A check mark shows the better value in a row. Range and efficiency check marks compare only values from the same test cycle. Prices are each market's own list prices, compared within that market; some include tax and some do not, and no price is marked better when the tax treatment differs. Energy cost is what the energy for 100 km (100 mi where the market uses miles) costs at the market's latest published national energy price, in its own currency, with the price's source and date.

Specification comparison
Specification BMW X3 Mercedes-Benz GLB
Price
Base priceUnited States US$51,300excl. taxChecked . Source for United States, BMW X3US$43,800Better value on this metricexcl. taxChecked . Source for United States, Mercedes-Benz GLB
Base priceCanada CA$60,400excl. taxChecked . Source for Canada, BMW X3 Not listed
Base priceUnited Kingdom Neither car has a price listed for United Kingdom yet.
Base priceAustralia Neither car has a price listed for Australia yet.
Base priceGermany Neither car has a price listed for Germany yet.
Base priceNetherlands Neither car has a price listed for Netherlands yet.
Base priceNorway Neither car has a price listed for Norway yet.
Base priceFrance Neither car has a price listed for France yet.
Base priceSpain Not listed from €58,584incl. taxTrim: GLB 250 4MATIC SUVChecked . Source for Spain, Mercedes-Benz GLB
Base priceItaly Neither car has a price listed for Italy yet.
Base priceBelgium Neither car has a price listed for Belgium yet.
Base priceAustria Neither car has a price listed for Austria yet.
Base priceIreland Neither car has a price listed for Ireland yet.
Base priceSweden Neither car has a price listed for Sweden yet.
Base priceDenmark Neither car has a price listed for Denmark yet.
Base priceSwitzerland from CHF 69,600incl. taxTrim: X3 20 xDriveChecked . Source for Switzerland, BMW X3 Not listed
Energy cost
Energy cost per 100 miUnited States US$14.75per 100 mi Gasoline at US$4.284 per US gallon, incl. tax, for 19 Oct 2026. EPA consumption. EIA Weekly Retail Gasoline and Diesel Prices for United States gasoline price Better value on this metric US$15.12per 100 mi Gasoline at US$4.284 per US gallon, incl. tax, for 19 Oct 2026. EPA consumption. EIA Weekly Retail Gasoline and Diesel Prices for United States gasoline price
Energy cost per 100 kmCanada CA$14.08per 100 km Petrol at CA$1.738 per litre, incl. tax, for 1 Aug 2026 to 31 Aug 2026. EPA consumption. Statistics Canada, table 18-10-0001-01 for Canada petrol price Better value on this metric CA$14.43per 100 km Petrol at CA$1.738 per litre, incl. tax, for 1 Aug 2026 to 31 Aug 2026. EPA consumption. Statistics Canada, table 18-10-0001-01 for Canada petrol price
Energy cost per 100 miUnited Kingdom £22.85per 100 mi Petrol at £1.753 per litre, incl. tax, for 12 Oct 2026. EPA consumption. UK DESNZ weekly road fuel prices for United Kingdom petrol price Better value on this metric £23.41per 100 mi Petrol at £1.753 per litre, incl. tax, for 12 Oct 2026. EPA consumption. UK DESNZ weekly road fuel prices for United Kingdom petrol price
Energy cost per 100 kmAustralia A$19.48per 100 km Petrol at A$2.405 per litre, incl. tax, for 5 Oct 2026 to 11 Oct 2026. EPA consumption. Australian Institute of Petroleum weekly reports for Australia petrol price Better value on this metric A$19.96per 100 km Petrol at A$2.405 per litre, incl. tax, for 5 Oct 2026 to 11 Oct 2026. EPA consumption. Australian Institute of Petroleum weekly reports for Australia petrol price
Energy cost per 100 kmGermany €17.65per 100 km Petrol at €2.179 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Germany petrol price Better value on this metric €18.09per 100 km Petrol at €2.179 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Germany petrol price
Energy cost per 100 kmNetherlands €19.36per 100 km Petrol at €2.391 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Netherlands petrol price Better value on this metric €19.84per 100 km Petrol at €2.391 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Netherlands petrol price
Energy cost per 100 kmNorway NOK 157.30per 100 km Petrol at NOK 19.42 per litre, incl. tax, for 1 Aug 2026 to 31 Aug 2026. EPA consumption. Statistics Norway fuel prices (table 09654) for Norway petrol price Better value on this metric NOK 161.19per 100 km Petrol at NOK 19.42 per litre, incl. tax, for 1 Aug 2026 to 31 Aug 2026. EPA consumption. Statistics Norway fuel prices (table 09654) for Norway petrol price
Energy cost per 100 kmFrance €18.05per 100 km Petrol at €2.229 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for France petrol price Better value on this metric €18.50per 100 km Petrol at €2.229 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for France petrol price
Energy cost per 100 kmSpain €14.42per 100 km Petrol at €1.78 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Spain petrol price Better value on this metric €14.78per 100 km Petrol at €1.78 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Spain petrol price
Energy cost per 100 kmItaly €16.33per 100 km Petrol at €2.016 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Italy petrol price Better value on this metric €16.73per 100 km Petrol at €2.016 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Italy petrol price
Energy cost per 100 kmBelgium €16.11per 100 km Petrol at €1.989 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Belgium petrol price Better value on this metric €16.51per 100 km Petrol at €1.989 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Belgium petrol price
Energy cost per 100 kmAustria €14.72per 100 km Petrol at €1.817 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Austria petrol price Better value on this metric €15.08per 100 km Petrol at €1.817 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Austria petrol price
Energy cost per 100 kmIreland €15.96per 100 km Petrol at €1.971 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Ireland petrol price Better value on this metric €16.36per 100 km Petrol at €1.971 per litre, incl. tax, for 19 Oct 2026. EPA consumption. EU Weekly Oil Bulletin for Ireland petrol price
Energy cost per 100 kmSweden SEK 144.91per 100 km Petrol at SEK 17.89 per litre, incl. tax, for 26 Oct 2026. EPA consumption. Preem AB list prices for business customers (Företagskort) for Sweden petrol price Better value on this metric SEK 148.49per 100 km Petrol at SEK 17.89 per litre, incl. tax, for 26 Oct 2026. EPA consumption. Preem AB list prices for business customers (Företagskort) for Sweden petrol price
Energy cost per 100 kmDenmark DKK 145.15per 100 km Petrol at DKK 17.92 per litre, incl. tax, for 1 May 2026 to 31 May 2026. EPA consumption. Energistyrelsen Prisdatabase (monthly energy prices, Blyfri 95 and Autodiesel) for Denmark petrol price Better value on this metric DKK 148.74per 100 km Petrol at DKK 17.92 per litre, incl. tax, for 1 May 2026 to 31 May 2026. EPA consumption. Energistyrelsen Prisdatabase (monthly energy prices, Blyfri 95 and Autodiesel) for Denmark petrol price
Energy cost per 100 kmSwitzerland CHF 16.36per 100 km Petrol at CHF 2.02 per litre, incl. tax, for 1 Sep 2026 to 30 Sep 2026. EPA consumption. BFS LIK Durchschnittspreise für Energie und Treibstoffe (monthly) for Switzerland petrol price Better value on this metric CHF 16.77per 100 km Petrol at CHF 2.02 per litre, incl. tax, for 1 Sep 2026 to 30 Sep 2026. EPA consumption. BFS LIK Durchschnittspreise für Energie und Treibstoffe (monthly) for Switzerland petrol price
Dimensions
Length 4,755 mm (187.2 in)4,633 mm (182.4 in)
Width 1,920 mm (75.6 in)1,834 mm (72.2 in)
Height 1,661 mm (65.4 in)1,694 mm (66.7 in)
Wheelbase 2,865 mm (112.8 in)2,830 mm (111.4 in)
Curb weight 1,894 kg1,894 kg (4,176 lb) Not available
Performance
Power 190 kW (255 hp)Better value on this metric165 kW (221 hp)
Torque 400 Nm295 lb-ft (400 Nm)Better value on this metric350 Nm258 lb-ft (350 Nm)
0-60 mph Not available 6.9 s
Engine and fuel
Fuel use 29 mpg8.1 L/100 km (EPA)34.9 mpg (EPA)Better value on this metric28.3 mpg8.3 L/100 km (EPA)34 mpg (EPA)
Fuel tank Not available 60.2 L
Engine size 1,998 cc2,000 cc
Practicality
Seats 55

BMW X3

Specifications: Manufacturer official pages, cited per row, checked . www.bmwusa.com www.press.bmwgroup.com open.canada.ca

Source detailsEPA 8.1 (id 49476)]. Exact unit factors: bhp x 0.745699872; in x 25.4; lb-ft x 1.3558179483314004.

Range and efficiency: Natural Resources Canada, Fuel Consumption Ratings, checked . open.canada.ca

Source detailsNRCan Fuel Consumption Ratings, model year 2026 (Open Government Licence - Canada): model text "X3 30 xDrive", engine 2.0 L, transmission AS8, Combined (L/100 km) 8.1. Matched to this version by model, engine, transmission and drive; EPA cross-check 8.1 L/100 km (fueleconomy.gov: BMW X3 xDrive30 2026 All-Wheel Drive Automatic (S8) 29 mpg (id 49476)). https://open.canada.ca/data/dataset/98f1a129-f628-4ce4-b24d-6f16bf24dd64

Other specifications: Manufacturer official pages, cited per row, checked . www.bmwusa.com

Source detailsFills an empty field only.

Mercedes-Benz GLB

Specifications: Manufacturer official pages, cited per row, checked . www.mbusa.com

Source detailsExact unit factors: gal x 3.785411784; hp x 0.745699872; in x 25.4; lb-ft x 1.3558179483314004.

Range and efficiency: Natural Resources Canada, Fuel Consumption Ratings, checked . open.canada.ca

Source detailsNRCan Fuel Consumption Ratings, model year 2026 (Open Government Licence - Canada): model text "GLB 250 SUV", engine 2.0 L, transmission AM8, Combined (L/100 km) 8.3. Matched to this version by model, engine, transmission and drive; EPA cross-check 8.4 L/100 km (fueleconomy.gov: Mercedes-Benz GLB250 2026 Front-Wheel Drive Automatic (AM8) 28 mpg (id 49841)). https://open.canada.ca/data/dataset/98f1a129-f628-4ce4-b24d-6f16bf24dd64

Other specifications: Manufacturer official pages, cited per row, checked . www.mbusa.com

Source detailsFills an empty field only.

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