Which is bigger, Audi A4 or A3?

[BlakelyRose]

Audi A4 is larger than A3. The introductions of Audi A4 and Audi A3 are as follows: Introduction to Audi A4: The body dimensions of the 2021 Audi A4 are: length 4762mm, width 1847mm, height 1436mm, with a wheelbase of 2825mm, a fuel tank capacity of 54 liters, and a curb weight of 1665kg. The 2021 Audi A4 is equipped with a 2.0T turbocharged engine, with a maximum torque of 320Nm and a maximum power of 150kW, paired with a 7-speed dual-clutch transmission. Introduction to Audi A3: The body dimensions of the Audi A3 are: length 4292mm, width 1765mm, height 1423mm, with a wheelbase of 2578mm. The Audi A3 is equipped with two engines, one is a 1.4-liter turbocharged engine, and the other is a 2.0-liter turbocharged engine. The 1.4-liter turbocharged engine has a maximum power of 110 kilowatts, a maximum torque of 250 Newton meters, a maximum power speed of 5000 to 6000 revolutions per minute, and a maximum torque speed of 1750 to 3000 revolutions per minute.

[VanDavid]

I distinctly remember that after driving several Audi A3 and A4 models, the A4 definitely feels more spacious. Comparing the body dimensions: the A3 is typically around 4.5 meters in length and just over 1.8 meters in width, while the A4 reaches about 4.7 meters in length and nearly 1.9 meters in width. It's also slightly taller, giving a more open feel when seated inside. The interior space is most noticeable—the A4's rear seats offer ample legroom, allowing adults to stretch their legs, and the trunk capacity is about 30% larger, easily accommodating a suitcase and shopping bags. In terms of driving, the A4 feels more stable, especially when overtaking at high speeds, though parking in the city can be trickier. Overall, the A4 is better suited for long trips or larger families, driving like a big sofa, while the A3 is more compact and agile, easier to park in tight spots, making it more convenient for daily commutes.

[StAnthony]

As someone who usually drives in the city, I'm quite familiar with the size difference between the Audi A3 and A4. The A4 is larger, about 20 cm longer than the A3, and also a few centimeters wider and taller. Numerically, the compact A3 is around 4.4-4.5 meters long with a smaller trunk, while the midsize A4 sedan is nearly 4.8 meters, offering more rear legroom. But in reality, for my commuting scenario, I lean toward the A3's compact size—it's easier to navigate narrow alleys and park without worrying about scraping walls. The A4's spaciousness is undeniable, providing more comfort for passengers, but finding parking during rush hour becomes a headache. In terms of fuel efficiency, the smaller A3 saves a bit on gas; the A4 offers better comfort, especially on long drives where back pain is less of an issue. The choice depends on daily needs: the A3 is better for frequent traffic jams; the A4 is worth it if you often carry loads or passengers.

[AthenaLee]

I often take my kids out in an Audi, and the A4 is noticeably larger than the A3. The body size is a full circle bigger, especially the interior space: the A4's rear seats comfortably fit three people with ample legroom, while the A3's rear seats are cramped, and kids moving around can get noisy. The trunk difference is even bigger—the A4 can fit a stroller and toys, while the A3 is full with just a suitcase. Driving the A4 feels stable and safe, but its larger turning radius makes parking tricky; the A3 is nimble and great for city maneuvering. If your family is small or you're often alone, the A3 suffices; for more people, the A4 is better.