
Audi's S and RS series differ in the following aspects: 1. Different models: Audi S stands for Sport, representing the performance version series of the Audi family; the RS series is entirely designed, developed, and manufactured by Audi's quattro department and is not produced on the same line as Audi's regular models. 2. Different engines: The Audi S is equipped with a 2.9T turbocharged engine; the RS is equipped with a 2.5T inline five-cylinder engine. Below is some related information about Audi: Audi is a luxury car brand under Audi AG, a subsidiary of the German Volkswagen Group. Its logo features four interlocking rings, and its headquarters is located in Ingolstadt, Germany, with branches in many countries including China.

Audi's S and RS series represent two distinct branches of high-performance models, but their positioning differs significantly. I often drive S models like the S4, which is essentially a sportier version of the regular A4 – boosting horsepower to around 350, stiffening the suspension a bit, making daily commutes a bit more exciting. The RS series, however, is far more extreme. Take the RS4, for example: horsepower surges beyond 450, with lightweight body design and competition-tuned suspension, delivering a race car-like driving experience with exceptional cornering stability. These engineering upgrades give the RS a performance edge that crushes the S, making it ideal for track days or hardcore driving, though road noise is more pronounced. If practicality matters, the S offers a better balance—fuel-efficient and easier to maintain. The RS, on the other hand, is purely speed-focused, but maintenance costs double, so it’s only recommended for die-hard enthusiasts.

Driving the S version A5, I found it well-balanced—quick acceleration without being excessive, enhanced road feel without sacrificing comfort. Then I tried the RS5, and the sheer thrust felt like a beast awakening, launching forward with a press of the throttle, with much tighter cornering, making the car and driver feel like one. For daily commutes, the S series is far more refined, especially in traffic jams where it's less exhausting; the RS series is better suited for weekend mountain runs or showing off, but prolonged driving can be tiring with wind noise overpowering the music. In short, the S is the starting point for performance, while the RS is the ultimate thrill—choose the former for city cruising, the latter for conquering the track.


