2026 Audi Q3 III vs. 2021 Audi Q4 e-tron Dimensions Comparison
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 2021 Audi Q4 e-tron compare in size:
In terms of length, the 2021 Audi Q4 e-tron comes in at 4588 mm (180.63 in), giving it a 57 mm (2.24 in) (1.2 %) advantage over the 2026 Audi Q3 III at 4531 mm (178.39 in). Looking at width, the 2021 Audi Q4 e-tron stretches to 1865 mm (73.43 in), making it 6 mm (0.24 in) (0.3 %) wider than the 2026 Audi Q3 III at 1859 mm (73.19 in). As for height, the 2021 Audi Q4 e-tron reaches 1632 mm (64.25 in), which is 4 mm (0.16 in) (0.2 %) taller than the 2026 Audi Q3 III at 1628 mm (64.09 in).
Overall, the 2021 Audi Q4 e-tron is longer, wider and taller than the 2026 Audi Q3 III.
Length
4531 mm178.4 in
4588 mm180.6 in
Width
1859 mm73.2 in
1865 mm73.4 in
Height
1628 mm64.1 in
1632 mm64.3 in
4531 mm178.4 in🔴 -57 mm-2.2 in (-1.2%)
4588 mm180.6 in🟢 +57 mm+2.2 in (+1.3%)
1859 mm73.2 in🔴 -6 mm-0.2 in (-0.3%)
1865 mm73.4 in🟢 +6 mm+0.2 in (+0.3%)
1628 mm64.1 in🔴 -4 mm-0.2 in (-0.2%)
1632 mm64.3 in🟢 +4 mm+0.2 in (+0.2%)
2026 Audi Q3 III
2021 Audi Q4 e-tron
Side-by-Side Specs: Dimensions, Weight & More
General Info
Body Style:
SUV
SUV
Model Year:
2026
2021
Production:
2025-present Current Model
2021-present Current Model
Dimensions
Length:
4531 mm178.4 in 🔴 -57 mm-2.2 in (-1.2%)
4588 mm180.6 in 🟢 +57 mm+2.2 in (+1.3%)
Width:
1859 mm73.2 in 🔴 -6 mm-0.2 in (-0.3%)
1865 mm73.4 in 🟢 +6 mm+0.2 in (+0.3%)
Width (Folded Mirrors):
-
-
Width (Opened Mirrors):
2088 mm82.2 in 🔴 -21 mm-0.8 in (-1.0%) - 🔴 -20 mm-0.8 in (-0.9%)
2108 mm83.0 in 🟢 +20 mm+0.8 in (+1.0%) - 🟢 +21 mm+0.8 in (+1.0%)
Height:
1601-1628 mm63.0-64.1 in 🔴 -31 mm-1.2 in (-1.9%) - 🟢 +11 mm+0.4 in (+0.7%)
1617-1632 mm63.7-64.3 in 🔴 -11 mm-0.4 in (-0.7%) - 🟢 +31 mm+1.2 in (+1.9%)
Ground Clearance:
-
180 mm7.1 in
Trunk Capacity:
375-488 liter13.2-17.2 cu ft 🔴 -145 liter-5.1 cu ft (-27.9%) - 🔴 -32 liter-1.1 cu ft (-6.2%)
520 liter18.4 cu ft 🟢 +32 liter+1.1 cu ft (+6.6%) - 🟢 +145 liter+5.1 cu ft (+38.7%)
Trunk Capacity (Max):
1293-1386 liter45.7-48.9 cu ft 🔴 -197 liter-7.0 cu ft (-13.2%) - 🔴 -104 liter-3.7 cu ft (-7.0%)
1490 liter52.6 cu ft 🟢 +104 liter+3.7 cu ft (+7.5%) - 🟢 +197 liter+7.0 cu ft (+15.2%)
