Here’s how 2021 Audi A3 Sportback and 2026 Audi Q3 III Sportback compare in size: 2026 Audi Q3 III Sportback is longer than 2021 Audi A3 Sportback, providing extra length. 2026 Audi Q3 III Sportback is wider than 2021 Audi A3 Sportback, giving it a broader stance. 2026 Audi Q3 III Sportback 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
1559 mm61.4 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🔴 -101 mm-4.0 in (-6.5%)
1559 mm61.4 in🟢 +101 mm+4.0 in (+6.9%)
2021 Audi A3 Sportback
2026 Audi Q3 III Sportback
Side-by-Side Specs: Dimensions, Weight & More
General Info
Body Style:
Hatchback
Coupe, SUV
Model Year:
2021
2026
Production:
2020-2024 Discontinued Model
n/a
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 🔴 -110 mm-4.3 in (-7.1%) - 🔴 -101 mm-4.0 in (-6.5%)
1559 mm61.4 in 🟢 +101 mm+4.0 in (+6.9%) - 🟢 +110 mm+4.3 in (+7.6%)
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 🔴 -189 liter-6.7 cu ft (-14.7%) - 🟢 +4 liter+0.1 cu ft (+0.3%)
1196-1289 liter42.2-45.5 cu ft 🔴 -4 liter-0.1 cu ft (-0.3%) - 🟢 +189 liter+6.7 cu ft (+17.2%)
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