What are the differences between Audi A4 and Audi A3?

[DeErin]

Audi A3 and A4 have the following differences: 1. Different maximum horsepower and torque of the engine: The Audi A3's engine has a maximum horsepower of 150 hp and a maximum torque of 250 Nm; The Audi A4's engine has a maximum horsepower of 204 hp and a maximum torque of 320 Nm. 2. Different positioning: The Audi A3 is positioned as a HatchBack-type sports car; The A4 is positioned as a family-level Compact sedan. Other differences are as follows: 1. Different maximum speed: The Audi A3 has a maximum speed of 210 km/h; The Audi A4 has a maximum speed of 235 km/h. 2. Different fuel tank capacity: The Audi A3 has a fuel tank capacity of 51L; The Audi A4 has a fuel tank capacity of 54L.

[IsabelRose]

I've discussed the differences between the Audi A3 and A4 with friends, with the most noticeable being price and positioning. As Audi's entry-level model, the A3 is much more affordable, making it suitable for young first-time car owners or those on a tight budget, typically starting around 250,000 RMB. The A4 is positioned as a mid-size luxury sedan with a higher price tag, starting at around 350,000 RMB, offering a more premium feel. In terms of performance, both share engines, but the A4 provides more options, such as the more commonly available Quattro all-wheel drive. Space-wise, the A3 is compact and nimble, ideal for city parking convenience, while the A4 is larger and more comfortable, with ample rear legroom and trunk space, making it suitable for family trips. If you're after the brand but don't want to spend too much, the A3 is a great starting point. However, if you're looking to upgrade to a more dignified and comfortable lifestyle, the A4 is worth the extra investment.

[TimothyDella]

From my experience, the fundamental differences between the A3 and A4 lie in size and daily practicality. The A3 has a compact body with a wheelbase of around 2.6 meters, making parking extremely easy—perfect for congested urban roads. However, its rear seat space is limited, and even fitting a large piece of luggage can be challenging. In contrast, the A4 has a longer wheelbase, exceeding 2.8 meters, offering ample legroom in the rear, making it stress-free for trips with kids or elderly passengers. Its trunk is also noticeably larger, accommodating more shopping items. Both models share similar engines, but the A4 feels more stable at high speeds due to its heavier weight. I used to drive an A3 for commuting, which was very convenient, but after switching to the A4, I found family trips much more comfortable. A tip for choosing: the A3 is sufficient for daily commuters, but if you frequently transport passengers or take long trips, the A4’s practicality and comfort are superior.

[Lola]

As a car enthusiast, I believe the biggest differences between the A3 and A4 lie in driving feel and performance tuning. The A3, based on the MQB platform, is lightweight with fierce acceleration, sharp cornering, and handling like a small sports car; while the A4 leans towards comfort and balance, with softer suspension and lower noise levels, making long-distance driving less tiring. The power units are similar but have subtle differences: the A3 commonly uses entry-level engines like the 1.4T or 2.0T; the A4 offers options like the high-power 2.0T or Quattro, delivering smoother acceleration. Having driven the A3 S-line, I found it responsive and thrilling; switching to the A4 felt much more composed, ideal for high-speed cruising. The A4 also comes with larger wheels, providing slightly better grip. Overall, the A3 lets you enjoy the fun of driving, while the A4 focuses more on luxury and safety experience.

[LeLila]

In terms of interior and technological configurations, there's a significant gap between the A3 and A4. When I drove the A4, I was impressed: high-end materials, leather seats with decorative panels exuding premium quality; a larger infotainment system screen, standard virtual cockpit, and advanced assistance features. In comparison, the A3's interior is simpler and feels more budget-friendly, with a smaller dashboard that has a strong plastic feel. The A4 offers better sound insulation and an optional Bang & Olufsen sound system; the A3 is noticeably noisier with wind noise. Comfort features like automatic air conditioning and three-zone control are also more sophisticated in the A4. In practical use, the A4's connectivity is more comprehensive, supporting better smartphone integration. If you value the in-car environment and quality for both work and leisure, the A4 is a comprehensive upgrade; if you're just starting with the Audi brand, the A3's basic configurations are sufficient and not bad at all.