Here’s how 2020 Mercedes-Benz GLB and 2026 Audi Q3 III compare in size: 2020 Mercedes-Benz GLB is longer than 2026 Audi Q3 III, offering more overall body length. 2026 Audi Q3 III is wider than 2020 Mercedes-Benz GLB, giving it a broader stance. 2020 Mercedes-Benz GLB is taller than 2026 Audi Q3 III, which could improve headroom or visibility.
Length
4634 mm182.4 in
4531 mm178.4 in
Width
1834 mm72.2 in
1859 mm73.2 in
Height
1658 mm65.3 in
1601 mm63.0 in
4634 mm182.4 in🟢 +103 mm+4.1 in (+2.3%)
4531 mm178.4 in🔴 -103 mm-4.1 in (-2.2%)
1834 mm72.2 in🔴 -25 mm-1.0 in (-1.3%)
1859 mm73.2 in🟢 +25 mm+1.0 in (+1.4%)
1658 mm65.3 in🟢 +57 mm+2.2 in (+3.6%)
1601 mm63.0 in🔴 -57 mm-2.2 in (-3.4%)
2020 Mercedes-Benz GLB
2026 Audi Q3 III
Side-by-Side Specs: Dimensions, Weight & More
General Info
Body Style:
SUV
SUV
Model Year:
2020
2026
Production:
2019-2023 Discontinued Model
2025-present Current Model
Dimensions
Length:
4634 mm182.4 in 🟢 +103 mm+4.1 in (+2.3%)
4531 mm178.4 in 🔴 -103 mm-4.1 in (-2.2%)
Width:
1834 mm72.2 in 🔴 -25 mm-1.0 in (-1.3%)
1859 mm73.2 in 🟢 +25 mm+1.0 in (+1.4%)
Width (Folded Mirrors):
-
-
Width (Opened Mirrors):
2020 mm79.5 in 🔴 -67 mm-2.6 in (-3.2%)
2087 mm82.2 in 🟢 +67 mm+2.6 in (+3.3%)
Height:
1658 mm65.3 in 🟢 +57 mm+2.2 in (+3.6%)
1601 mm63.0 in 🔴 -57 mm-2.2 in (-3.4%)
Ground Clearance:
135 mm5.3 in
-
Trunk Capacity:
565-570 liter20.0-20.1 cu ft 🟢 +77 liter+2.7 cu ft (+15.8%) - 🟢 +195 liter+6.9 cu ft (+52.0%)
375-488 liter13.2-17.2 cu ft 🔴 -195 liter-6.9 cu ft (-34.2%) - 🔴 -77 liter-2.7 cu ft (-13.6%)
Trunk Capacity (Max):
1800-1805 liter63.6-63.7 cu ft 🟢 +414 liter+14.6 cu ft (+29.9%) - 🟢 +512 liter+18.1 cu ft (+39.6%)
1293-1386 liter45.7-48.9 cu ft 🔴 -512 liter-18.1 cu ft (-28.4%) - 🔴 -414 liter-14.6 cu ft (-23.0%)
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