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