Here’s how 2021 Audi A3 Sportback and 2026 Audi Q3 III compare in size: 2026 Audi Q3 III is longer than 2021 Audi A3 Sportback, providing extra length. 2026 Audi Q3 III is wider than 2021 Audi A3 Sportback, giving it a broader stance. 2026 Audi Q3 III is taller than 2021 Audi A3 Sportback, adding extra vertical space.
Length
4343 mm171.0 in
4531 mm178.4 in
Width
1816 mm71.5 in
1859 mm73.2 in
Height
1458 mm57.4 in
1601 mm63.0 in
4343 mm171.0 in🔴 -188 mm-7.4 in (-4.1%)
4531 mm178.4 in🟢 +188 mm+7.4 in (+4.3%)
1816 mm71.5 in🔴 -43 mm-1.7 in (-2.3%)
1859 mm73.2 in🟢 +43 mm+1.7 in (+2.4%)
1458 mm57.4 in🔴 -143 mm-5.6 in (-8.9%)
1601 mm63.0 in🟢 +143 mm+5.6 in (+9.8%)
2021 Audi A3 Sportback
2026 Audi Q3 III
Side-by-Side Specs: Dimensions, Weight & More
General Info
Body Style:
Hatchback
SUV
Model Year:
2021
2026
Production:
2020-2024 Discontinued Model
2025-present Current Model
Dimensions
Length:
4343 mm171.0 in 🔴 -188 mm-7.4 in (-4.1%)
4531 mm178.4 in 🟢 +188 mm+7.4 in (+4.3%)
Width:
1816 mm71.5 in 🔴 -43 mm-1.7 in (-2.3%)
1859 mm73.2 in 🟢 +43 mm+1.7 in (+2.4%)
Width (Folded Mirrors):
-
-
Width (Opened Mirrors):
1984 mm78.1 in 🔴 -103 mm-4.1 in (-4.9%)
2087 mm82.2 in 🟢 +103 mm+4.1 in (+5.2%)
Height:
1449-1458 mm57.0-57.4 in 🔴 -152 mm-6.0 in (-9.5%) - 🔴 -143 mm-5.6 in (-8.9%)
1601 mm63.0 in 🟢 +143 mm+5.6 in (+9.8%) - 🟢 +152 mm+6.0 in (+10.5%)
Ground Clearance:
-
-
Trunk Capacity:
280-380 liter9.9-13.4 cu ft 🔴 -208 liter-7.3 cu ft (-42.6%) - 🟢 +5 liter+0.2 cu ft (+1.3%)
375-488 liter13.2-17.2 cu ft 🔴 -5 liter-0.2 cu ft (-1.3%) - 🟢 +208 liter+7.3 cu ft (+74.3%)
Trunk Capacity (Max):
1100-1200 liter38.8-42.4 cu ft 🔴 -286 liter-10.1 cu ft (-20.6%) - 🔴 -93 liter-3.3 cu ft (-7.2%)
1293-1386 liter45.7-48.9 cu ft 🟢 +93 liter+3.3 cu ft (+7.8%) - 🟢 +286 liter+10.1 cu ft (+26.0%)
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