What is the difference between Audi S4 and Audi A4?

[Cameron]

The differences between the Audi S4 and Audi A4 are in the engines: the Audi S4 is equipped with a high-performance 3.0T engine, while the Audi A4 comes with either a 2.0T or 1.4T engine. The Audi S4 uses an 8-speed automatic transmission, whereas the standard Audi A4 employs a 7-speed dual-clutch transmission. The 3.0-liter turbocharged engine in the Audi S4 delivers a maximum power of 260 kW and a maximum torque of 500 Nm, with the maximum power achieved between 5,400 and 6,400 rpm and the maximum torque available from 1,370 to 4,500 rpm. This engine features direct fuel injection technology and uses an aluminum alloy cylinder head and block. The Audi S4 also comes with full-time four-wheel drive technology, a crown gear center differential, a five-link independent front suspension, and a five-link independent rear suspension.

[Zion]

After driving the Audi A4, I feel it leans more towards daily use, with high comfort and low fuel consumption, making it quite suitable for a nine-to-five commuter like me. The S4 has much stronger power, accelerating like a mad bull, but it feels a bit wasted in the city and comes with significantly higher costs. I've tried it a few times—the A4 offers spacious and practical space, while the S4, despite its sporty kit, makes the rear seats uncomfortable for long rides. Maintenance-wise, the A4 is more hassle-free, with cheaper insurance and fuel costs. If you prioritize convenience and wallet-friendliness, the A4 is definitely the top choice, and it’s also great for weekend getaways—after all, we don’t race every day. But the S4’s exhilarating push-back feeling on the highway is truly unforgettable. In short, it depends on your needs. For me, I prioritize daily practicality when choosing a car.

[DeEloise]

I'm particularly fond of comparing performance cars. The Audi S4 completely outshines the A4 in terms of power, equipped with a 3.0T V6 engine producing over 350 horsepower, capable of 0-60 mph acceleration in under 5 seconds - driving it really gets your adrenaline pumping. In contrast, the A4's 2.0T four-cylinder engine only delivers around 250 horsepower, making it much tamer. The suspension is also more sporty in the S4, sticking firmly to the ground when cornering, while the A4 feels rather soft. There's a significant price difference, but the S4 is worth every penny if you value driving dynamics - you really shouldn't miss out. I recommend test driving both to experience the difference firsthand. The S4 also boasts a more aggressive exterior design, combined with the Quattro system, it's purely born for passion. While maintenance costs more, what you get in return is unparalleled driving pleasure.

[OAlina]

From a family perspective, the Audi A4 is more considerate. It offers ample space, a trunk that can fit a stroller, comfortable rear seats for hassle-free child transport, high safety features, and low fuel consumption for cost savings. The S4 has fierce acceleration, but its abrupt braking feels unstable when carrying kids, and its high expenses make it impractical. The A4 is sufficient for my family outings, while the S4 feels more like a big toy with weak practicality, troublesome maintenance, and heavy fuel consumption. Choosing a car should prioritize family needs over pure thrill-seeking.

[CarlosAnn]

In terms of cost-effectiveness, the A4 has a lower starting price, making it easier to afford, and its maintenance costs are economical. The S4 is tens of thousands more expensive, with significantly better performance, but whether it's worth it depends on usage: the A4 is the most economical for daily commuting, while the S4 is for mountain runs or racing. I've done the math—the S4 costs 20% more in fuel and insurance, and depreciates faster on the used market. Balance needs and budget to choose the A4; performance enthusiasts should pick the S4, but avoiding excess is the real money-saver.

[BraxtonDella]

Technically speaking, the difference lies in the engines - the S4 features a 3.0T V6 outputting over 350 horsepower, while the A4 comes with a 2.0T four-cylinder producing around 250hp. The S4 has stiffer suspension, stronger brakes, louder exhaust notes and precision handling; whereas the A4 offers softer tuning for comfort and fuel efficiency. From my hands-on experience with both vehicles, I found significant component differences resulting in completely distinct driving experiences.