Compare Dimensions Side by Side 2026 Audi Q3 III vs. 2020 Mercedes-Benz GLB
Compare the size of two cars side by side and see their differences at a glance. Simply enter the vehicle names, and our tool creates a clear visual comparison of their length, width, and height. This makes it easy to find out which car is longer, wider, or taller, and helps you better understand their overall proportions. Whether you are checking if a car will fit in your garage, comparing everyday models, or exploring larger SUVs, this tool provides a straightforward way to see all key dimensions in one place.
Here’s how the 2026 Audi Q3 III and the 2020 Mercedes-Benz GLB compare in size:
In terms of length, the 2020 Mercedes-Benz GLB comes in at 4634 mm (182.44 in), giving it a 103 mm (4.06 in) (2.2 %) advantage over the 2026 Audi Q3 III at 4531 mm (178.39 in). Looking at width, the 2026 Audi Q3 III spans 1859 mm (73.19 in), which is 25 mm (0.98 in) (1.3 %) broader than the 2020 Mercedes-Benz GLB at 1834 mm (72.20 in). As for height, the 2020 Mercedes-Benz GLB reaches 1658 mm (65.28 in), which is 57 mm (2.24 in) (3.4 %) taller than the 2026 Audi Q3 III at 1601 mm (63.03 in).
Overall, the 2026 Audi Q3 III is wider than the 2020 Mercedes-Benz GLB, while the 2020 Mercedes-Benz GLB is longer and taller than the 2026 Audi Q3 III.
Length
4531 mm178.4 in
4634 mm182.4 in
Width
1859 mm73.2 in
1834 mm72.2 in
Height
1601 mm63.0 in
1658 mm65.3 in
4531 mm178.4 in🔴 -103 mm-4.1 in (-2.2%)
4634 mm182.4 in🟢 +103 mm+4.1 in (+2.3%)
1859 mm73.2 in🟢 +25 mm+1.0 in (+1.4%)
1834 mm72.2 in🔴 -25 mm-1.0 in (-1.3%)
1601 mm63.0 in🔴 -57 mm-2.2 in (-3.4%)
1658 mm65.3 in🟢 +57 mm+2.2 in (+3.6%)
2026 Audi Q3 III
2020 Mercedes-Benz GLB
Side-by-Side Specs: Dimensions, Weight & More
General Info
Body Style:
SUV
SUV
Model Year:
2026
2020
Production:
2025-present Current Model
2019-2023 Discontinued Model
Dimensions
Length:
4531 mm178.4 in 🔴 -103 mm-4.1 in (-2.2%)
4634 mm182.4 in 🟢 +103 mm+4.1 in (+2.3%)
Width:
1859 mm73.2 in 🟢 +25 mm+1.0 in (+1.4%)
1834 mm72.2 in 🔴 -25 mm-1.0 in (-1.3%)
Width (Folded Mirrors):
-
-
Width (Opened Mirrors):
2087 mm82.2 in 🟢 +67 mm+2.6 in (+3.3%)
2020 mm79.5 in 🔴 -67 mm-2.6 in (-3.2%)
Height:
1601 mm63.0 in 🔴 -57 mm-2.2 in (-3.4%)
1658 mm65.3 in 🟢 +57 mm+2.2 in (+3.6%)
Ground Clearance:
-
135 mm5.3 in
Trunk Capacity:
375-488 liter13.2-17.2 cu ft 🔴 -195 liter-6.9 cu ft (-34.2%) - 🔴 -77 liter-2.7 cu ft (-13.6%)
565-570 liter20.0-20.1 cu ft 🟢 +77 liter+2.7 cu ft (+15.8%) - 🟢 +195 liter+6.9 cu ft (+52.0%)
Trunk Capacity (Max):
1293-1386 liter45.7-48.9 cu ft 🔴 -512 liter-18.1 cu ft (-28.4%) - 🔴 -414 liter-14.6 cu ft (-23.0%)
1800-1805 liter63.6-63.7 cu ft 🟢 +414 liter+14.6 cu ft (+29.9%) - 🟢 +512 liter+18.1 cu ft (+39.6%)
