2025 BMW X3 Long vs. 2021 Audi A3 Sportback 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 2025 BMW X3 Long and the 2021 Audi A3 Sportback compare in size:
In terms of length, the 2025 BMW X3 Long measures 4865 mm (191.54 in), making it 522 mm (20.55 in) (10.7 %) longer than the 2021 Audi A3 Sportback at 4343 mm (170.98 in). Looking at width, the 2025 BMW X3 Long spans 1920 mm (75.59 in), which is 104 mm (4.09 in) (5.4 %) broader than the 2021 Audi A3 Sportback at 1816 mm (71.50 in). As for height, the 2025 BMW X3 Long stands at 1664 mm (65.51 in), giving it an extra 206 mm (8.11 in) (12.4 %) compared to the 2021 Audi A3 Sportback at 1458 mm (57.40 in).
Overall, the 2025 BMW X3 Long is longer, wider and taller than the 2021 Audi A3 Sportback.
Length
4865 mm191.5 in
4343 mm171.0 in
Width
1920 mm75.6 in
1816 mm71.5 in
Height
1664 mm65.5 in
1458 mm57.4 in
4865 mm191.5 in🟢 +522 mm+20.6 in (+12.0%)
4343 mm171.0 in🔴 -522 mm-20.6 in (-10.7%)
1920 mm75.6 in🟢 +104 mm+4.1 in (+5.7%)
1816 mm71.5 in🔴 -104 mm-4.1 in (-5.4%)
1664 mm65.5 in🟢 +206 mm+8.1 in (+14.1%)
1458 mm57.4 in🔴 -206 mm-8.1 in (-12.4%)
2025 BMW X3 Long
2021 Audi A3 Sportback
Side-by-Side Specs: Dimensions, Weight & More
General Info
Body Style:
SUV
Hatchback
Model Year:
2025
2021
Production:
n/a
2020-2024 Discontinued Model
Dimensions
Length:
4865 mm191.5 in 🟢 +522 mm+20.6 in (+12.0%)
4343 mm171.0 in 🔴 -522 mm-20.6 in (-10.7%)
Width:
1920 mm75.6 in 🟢 +104 mm+4.1 in (+5.7%)
1816 mm71.5 in 🔴 -104 mm-4.1 in (-5.4%)
Width (Folded Mirrors):
-
-
Width (Opened Mirrors):
-
1984 mm78.1 in
Height:
1664 mm65.5 in 🟢 +206 mm+8.1 in (+14.1%) - 🟢 +215 mm+8.5 in (+14.8%)
1449-1458 mm57.0-57.4 in 🔴 -215 mm-8.5 in (-12.9%) - 🔴 -206 mm-8.1 in (-12.4%)
