2025 BMW X3 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 and the 2021 Audi A3 Sportback compare in size:
In terms of length, the 2025 BMW X3 measures 4755 mm (187.20 in), making it 412 mm (16.22 in) (8.7 %) longer than the 2021 Audi A3 Sportback at 4343 mm (170.98 in). Looking at width, the 2025 BMW X3 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 stands at 1660 mm (65.35 in), giving it an extra 202 mm (7.95 in) (12.2 %) compared to the 2021 Audi A3 Sportback at 1458 mm (57.40 in).
Overall, the 2025 BMW X3 is longer, wider and taller than the 2021 Audi A3 Sportback.
Length
4755 mm187.2 in
4343 mm171.0 in
Width
1920 mm75.6 in
1816 mm71.5 in
Height
1660 mm65.4 in
1458 mm57.4 in
4755 mm187.2 in🟢 +412 mm+16.2 in (+9.5%)
4343 mm171.0 in🔴 -412 mm-16.2 in (-8.7%)
1920 mm75.6 in🟢 +104 mm+4.1 in (+5.7%)
1816 mm71.5 in🔴 -104 mm-4.1 in (-5.4%)
1660 mm65.4 in🟢 +202 mm+8.0 in (+13.9%)
1458 mm57.4 in🔴 -202 mm-8.0 in (-12.2%)
2025 BMW X3
2021 Audi A3 Sportback
Side-by-Side Specs: Dimensions, Weight & More
General Info
Body Style:
SUV
Hatchback
Model Year:
2025
2021
Production:
2024-present Current Model
2020-2024 Discontinued Model
Dimensions
Length:
4755 mm187.2 in 🟢 +412 mm+16.2 in (+9.5%)
4343 mm171.0 in 🔴 -412 mm-16.2 in (-8.7%)
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):
2132 mm83.9 in 🟢 +148 mm+5.8 in (+7.5%)
1984 mm78.1 in 🔴 -148 mm-5.8 in (-6.9%)
Height:
1660 mm65.4 in 🟢 +202 mm+8.0 in (+13.9%) - 🟢 +211 mm+8.3 in (+14.6%)
1449-1458 mm57.0-57.4 in 🔴 -211 mm-8.3 in (-12.7%) - 🔴 -202 mm-8.0 in (-12.2%)
Ground Clearance:
208-216 mm8.2-8.5 in
-
Trunk Capacity:
460-570 liter16.2-20.1 cu ft 🟢 +80 liter+2.8 cu ft (+21.1%) - 🟢 +290 liter+10.2 cu ft (+103.6%)
280-380 liter9.9-13.4 cu ft 🔴 -290 liter-10.2 cu ft (-50.9%) - 🔴 -80 liter-2.8 cu ft (-17.4%)
Trunk Capacity (Max):
1600-1700 liter56.5-60.0 cu ft 🟢 +400 liter+14.1 cu ft (+33.3%) - 🟢 +600 liter+21.2 cu ft (+54.5%)
1100-1200 liter38.8-42.4 cu ft 🔴 -600 liter-21.2 cu ft (-35.3%) - 🔴 -400 liter-14.1 cu ft (-25.0%)
