What is the difference between Audi RS5 and Audi S5?

[Sid]

The differences between Audi RS5 and Audi S5: 1. Different levels: The Audi RS5 is a high-performance sports car; the Audi S5 is a family sedan. 2. Different body dimensions: The Audi RS5 has body dimensions of 4649mm in length, 1860mm in width, and 1366mm in height; the Audi S5 has body dimensions of 4640mm in length, 1854mm in width, and 1380mm in height. 3. Different power: The Audi RS5 is equipped with a 4.2L naturally aspirated engine, with a maximum power of 331kW, maximum power speed of 8250rpm, maximum torque of 430Nm, and maximum torque speed of 4000 to 6000rpm; the Audi S5 is equipped with a 3.0L turbocharged engine, with a maximum power of 245kW, maximum power speed of 5500 to 6500rpm, maximum torque of 440Nm, and maximum torque speed of 2900 to 5300rpm.

[DiLane]

As a devoted enthusiast of the Audi lineup, I can share some insights into the real differences between these two models. The RS5 is like a beast in Audi's performance lineup, equipped with a 2.9-liter V6 biturbo engine that delivers a starting output of 450 horsepower, enabling a 0-100 km/h sprint in just 3.9 seconds—a full 100 horsepower more than the S5's 3.0-liter V6 single turbo. The chassis is entirely different as well; the RS5 features stiffer sport suspension, more precise steering, and comes standard with quattro all-wheel drive and a sport differential, making its track performance significantly superior. Visually, the RS5 stands out with its aggressive front grille, larger wheels, and sporty rear exhaust setup, along with more radical carbon fiber components, making it instantly recognizable as the performance flagship. While the S5 can be upgraded with aftermarket kits, the factory performance gap is substantial, and there's a price difference of around 300,000 RMB. For daily commuting, the S5 is more than adequate, but for those seeking Audi's top-tier driving dynamics, the RS5 is the way to go.

[LaAngelo]

I've test-driven both cars multiple times, and my biggest takeaway is that the RS5 has a more extreme overall tuning. For example, the suspension system in the RS5 uses a specialized configuration from Audi's high-performance division, offering significantly better roll control during cornering compared to the S5—even the exhaust note includes backfire sounds. The brake disc sizes also differ notably: the RS5 features six-piston calipers with 375mm discs on the front wheels, while the standard S5 only has four-piston calipers with 350mm discs. Inside, the RS5 comes standard with racing seats and an Alcantara steering wheel, whereas these are optional for the S5. However, the S5 has its advantages, such as standard air suspension that allows for adjustable stiffness, making its comfort mode better suited for long-distance driving than the RS5, along with about 10% lower fuel consumption—essentially a choice between performance and luxury.

[NadiaAnn]

They differ right from the chassis code! The RS5 is built on the 8W platform, while the S5 is still tuned from the standard A5's B9 platform. The most fundamental difference lies in the engines: the RS5's EA839 engine shares its origins with the Porsche Panamera, with a reinforced cylinder block that can withstand higher turbo pressure, significantly widening the gap in tuning potential. Although both use an 8AT transmission, the RS5's sport program responds quicker, with downshifts so sharp it feels like being kicked. Weight distribution is another key factor—the RS5's carbon fiber roof shaves off 30kg, achieving a near-perfect 47:53 front-to-rear weight balance for much sharper handling. These differences allow the RS5 to lap the Nürburgring a full half-minute faster, though the trade-off is a noticeably stiffer ride and louder tire noise in daily driving. If you frequently transport elderly passengers or children, the S5's more balanced setup proves more practical.