2018 Mercedes-Benz A-class vs 2026 Audi Q3 III Sportback
Compare Dimensions Side by Side 2018 Mercedes-Benz A-class vs. 2026 Audi Q3 III Sportback
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 2018 Mercedes-Benz A-class and the 2026 Audi Q3 III Sportback compare in size:
In terms of length, the 2026 Audi Q3 III Sportback comes in at 4531 mm (178.39 in), giving it a 86 mm (3.39 in) (1.9 %) advantage over the 2018 Mercedes-Benz A-class at 4445 mm (175.00 in). Looking at width, the 2026 Audi Q3 III Sportback stretches to 1859 mm (73.19 in), making it 9 mm (0.35 in) (0.5 %) wider than the 2018 Mercedes-Benz A-class at 1850 mm (72.83 in). As for height, the 2026 Audi Q3 III Sportback reaches 1559 mm (61.38 in), which is 107 mm (4.21 in) (6.9 %) taller than the 2018 Mercedes-Benz A-class at 1452 mm (57.17 in).
Overall, the 2026 Audi Q3 III Sportback is longer, wider and taller than the 2018 Mercedes-Benz A-class.
Length
4445 mm175.0 in
4531 mm178.4 in
Width
1850 mm72.8 in
1859 mm73.2 in
Height
1452 mm57.2 in
1559 mm61.4 in
4445 mm175.0 in🔴 -86 mm-3.4 in (-1.9%)
4531 mm178.4 in🟢 +86 mm+3.4 in (+1.9%)
1850 mm72.8 in🔴 -9 mm-0.4 in (-0.5%)
1859 mm73.2 in🟢 +9 mm+0.4 in (+0.5%)
1452 mm57.2 in🔴 -107 mm-4.2 in (-6.9%)
1559 mm61.4 in🟢 +107 mm+4.2 in (+7.4%)
2018 Mercedes-Benz A-class
2026 Audi Q3 III Sportback
Side-by-Side Specs: Dimensions, Weight & More
General Info
Body Style:
Hatchback
Coupe, SUV
Model Year:
2018
2026
Production:
2018-2022 Discontinued Model
n/a
Dimensions
Length:
4419-4445 mm174.0-175.0 in 🔴 -112 mm-4.4 in (-2.5%) - 🔴 -86 mm-3.4 in (-1.9%)
4531 mm178.4 in 🟢 +86 mm+3.4 in (+1.9%) - 🟢 +112 mm+4.4 in (+2.5%)
Width:
1796-1850 mm70.7-72.8 in 🔴 -63 mm-2.5 in (-3.4%) - 🔴 -9 mm-0.4 in (-0.5%)
1859 mm73.2 in 🟢 +9 mm+0.4 in (+0.5%) - 🟢 +63 mm+2.5 in (+3.5%)
Width (Folded Mirrors):
-
-
Width (Opened Mirrors):
1992 mm78.4 in 🔴 -95 mm-3.7 in (-4.6%)
2087 mm82.2 in 🟢 +95 mm+3.7 in (+4.8%)
Height:
1405-1452 mm55.3-57.2 in 🔴 -154 mm-6.1 in (-9.9%) - 🔴 -107 mm-4.2 in (-6.9%)
1559 mm61.4 in 🟢 +107 mm+4.2 in (+7.4%) - 🟢 +154 mm+6.1 in (+11.0%)
Ground Clearance:
81-104 mm3.2-4.1 in
-
Trunk Capacity:
310-370 liter10.9-13.1 cu ft 🔴 -178 liter-6.3 cu ft (-36.5%) - 🔴 -5 liter-0.2 cu ft (-1.3%)
375-488 liter13.2-17.2 cu ft 🟢 +5 liter+0.2 cu ft (+1.4%) - 🟢 +178 liter+6.3 cu ft (+57.4%)
Trunk Capacity (Max):
370-1210 liter13.1-42.7 cu ft 🔴 -919 liter-32.5 cu ft (-71.3%) - 🟢 +14 liter+0.5 cu ft (+1.2%)
1196-1289 liter42.2-45.5 cu ft 🔴 -14 liter-0.5 cu ft (-1.2%) - 🟢 +919 liter+32.5 cu ft (+248.4%)
