2026 Audi Q3 III Sportback vs 2018 Mercedes-Benz A-class Sedan
2026 Audi Q3 III Sportback vs. 2018 Mercedes-Benz A-class Sedan 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 Sportback and the 2018 Mercedes-Benz A-class Sedan compare in size:
In terms of length, the 2018 Mercedes-Benz A-class Sedan comes in at 4549 mm (179.09 in), giving it a 18 mm (0.71 in) (0.4 %) advantage over the 2026 Audi Q3 III Sportback at 4531 mm (178.39 in). Looking at width, the 2026 Audi Q3 III Sportback spans 1859 mm (73.19 in), which is 63 mm (2.48 in) (3.4 %) broader than the 2018 Mercedes-Benz A-class Sedan at 1796 mm (70.71 in). As for height, the 2026 Audi Q3 III Sportback stands at 1559 mm (61.38 in), giving it an extra 101 mm (3.98 in) (6.5 %) compared to the 2018 Mercedes-Benz A-class Sedan at 1458 mm (57.40 in).
Overall, the 2026 Audi Q3 III Sportback is wider and taller than the 2018 Mercedes-Benz A-class Sedan, while the 2018 Mercedes-Benz A-class Sedan is longer than the 2026 Audi Q3 III Sportback.
Length
4531 mm178.4 in
4549 mm179.1 in
Width
1859 mm73.2 in
1796 mm70.7 in
Height
1559 mm61.4 in
1458 mm57.4 in
4531 mm178.4 in🔴 -18 mm-0.7 in (-0.4%)
4549 mm179.1 in🟢 +18 mm+0.7 in (+0.4%)
1859 mm73.2 in🟢 +63 mm+2.5 in (+3.5%)
1796 mm70.7 in🔴 -63 mm-2.5 in (-3.4%)
1559 mm61.4 in🟢 +101 mm+4.0 in (+6.9%)
1458 mm57.4 in🔴 -101 mm-4.0 in (-6.5%)
2026 Audi Q3 III Sportback
2018 Mercedes-Benz A-class Sedan
Side-by-Side Specs: Dimensions, Weight & More
General Info
Body Style:
Coupe, SUV
Sedan
Model Year:
2026
2018
Production:
n/a
2018-2022 Discontinued Model
Dimensions
Length:
4531 mm178.4 in 🔴 -18 mm-0.7 in (-0.4%)
4549 mm179.1 in 🟢 +18 mm+0.7 in (+0.4%)
Width:
1859 mm73.2 in 🟢 +63 mm+2.5 in (+3.5%)
1796 mm70.7 in 🔴 -63 mm-2.5 in (-3.4%)
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 🟢 +101 mm+4.0 in (+6.9%) - 🟢 +113 mm+4.4 in (+7.8%)
1446-1458 mm56.9-57.4 in 🔴 -113 mm-4.4 in (-7.2%) - 🔴 -101 mm-4.0 in (-6.5%)
Ground Clearance:
-
104 mm4.1 in
Trunk Capacity:
375-488 liter13.2-17.2 cu ft 🔴 -45 liter-1.6 cu ft (-10.7%) - 🟢 +143 liter+5.0 cu ft (+41.4%)
345-420 liter12.2-14.8 cu ft 🔴 -143 liter-5.0 cu ft (-29.3%) - 🟢 +45 liter+1.6 cu ft (+12.0%)
