What are the differences between Audi A3 and Audi A4?

[OTalia]

Audi A4 and A3 differ in the following aspects: 1. These two models have different positioning. The A3 is a compact car, while the A4 is a midsize car. 2. The Audi A3 is equipped with two engines: a 1.4-liter turbocharged engine and a 2.0-liter turbocharged engine. Both engines are paired with a 7-speed dual-clutch transmission. The Audi A3 also has a hatchback version. The A4 is equipped with three engines, all of which are 2.0-liter turbocharged engines, matched with a 7-speed dual-clutch transmission. The Audi A4 with the high-power 2.0-liter turbocharged engine also features Audi's quattro all-wheel-drive system, making the acceleration performance of this model very strong. 3. The interior space of the Audi A4 is larger than that of the A3, and its handling and power are also superior. The A4 has a higher price and more advanced configurations. The A4 has been on the domestic market for a long time, and its sales and reputation are excellent. The Audi A3 is popular among many female consumers due to its stylish exterior and attractive interior design.

[LeParker]

I've always believed that buying a car depends on daily usage. The biggest differences between the Audi A3 and A4 lie in size and practicality. The A3 is a compact sedan or hatchback, short and agile, making parking particularly convenient—ideal for city driving. However, it has limited rear legroom and a smaller trunk, which can be challenging for carrying luggage. In contrast, the A4 is a midsize sedan, larger in both length and width. It comfortably seats three adults in the back, and its trunk can easily fit two large suitcases, making family trips much more comfortable. Interior-wise, the A4 uses higher-quality materials with more soft-touch surfaces and refined details, ensuring a fatigue-free experience on long drives. While both models share some engine options, the A4's quattro all-wheel-drive system offers better stability, especially at high speeds, enhancing handling confidence. Price-wise, the A4 is significantly more expensive, so you'll need to consider whether the extra tens of thousands are worth it. Overall, if you frequently take long trips or carry passengers, the A4 is the better choice. Otherwise, the A3 is sufficient and more budget-friendly.

[StKatherine]

When choosing a car on a limited budget, the differences between the Audi A3 and A4 are quite noticeable. The A3 has a much lower entry price, starting at just over 200,000 yuan, and offers significant savings on insurance and maintenance costs, making it ideal for someone like me who wants to experience the Audi brand without spending a fortune. The A4, on the other hand, is considerably more expensive, with the base model starting at over 300,000 yuan, and comes with higher-end features like more advanced driver assistance and heated seats, as well as slightly better long-term resale value, meaning you lose less when selling it after a few years. In terms of performance, although both share similar engine types, the A4 has a more powerful tuning, especially with smoother acceleration response, though the front-wheel-drive A3 is more than sufficient for daily commuting. The A4 does offer more space, but at the cost of slightly higher fuel consumption, adding to daily commuting expenses. My recommendation is to go for the A3 if you're on a tight budget—it offers great value for money—and consider the A4 only if you're looking for a comprehensive upgrade.

[SanJulian]

Having driven Audi models several times, the driving feel between the A3 and A4 differs significantly. The A3's chassis is more agile and compact, with quick turn-in response, making stop-and-go city driving quite enjoyable. Its lighter body allows for brisk acceleration, delivering a sporty, almost coupe-like driving pleasure. In contrast, the A4 offers a heavier body with stable support, remaining planted during high-speed cornering without any floatiness. Its superior sound insulation ensures a noticeably quieter cabin, reducing fatigue especially on long drives. While engine options are similar, the A4's high-output version delivers more robust power with smoother turbo engagement. Size-wise, one is compact while the other midsize—the A4's rear seats are distinctly more spacious, and storage capacity is more generous. Exterior design sees the A3 as sporty and youthful, whereas the A4 leans toward business elegance. For daily use, personal experience suggests the A3 suits solo adventures, while the A4 serves as a steady cruising companion.