The Audi S4, a performance-oriented version of the A4, has a rich history of incorporating forced induction to enhance its power and driving experience. For those of you wondering, "What year did the Audi S4 become turbocharged?" let's dive into the specifics of when Audi introduced turbocharging to the S4 and how it has evolved over the years.

The First Turbocharged Audi S4: The B5 Generation (1997-2002)

The B5 generation of the Audi S4, produced from 1997 to 2002, marked the first time Audi used a turbocharged engine in the S4. This generation is powered by a 2.7-liter twin-turbocharged V6 engine, which produces 250 horsepower and 258 lb-ft of torque. The B5 S4 was a game-changer in the compact performance sedan market, offering impressive acceleration and a sporty driving experience. It quickly gained a following among enthusiasts who appreciated its combination of luxury, performance, and understated styling.

The B5 S4 featured a sophisticated all-wheel-drive system (Quattro) that provided excellent traction and handling in various driving conditions. The twin-turbo setup allowed for a broad torque curve, meaning that the engine produced plenty of power throughout the rev range. This made the car feel quick and responsive, whether you were accelerating from a standstill or overtaking on the highway. The B5 S4 was available with either a manual or automatic transmission, catering to different driver preferences.

In terms of design, the B5 S4 sported subtle yet distinctive styling cues that set it apart from the standard A4. These included unique front and rear bumpers, side skirts, and alloy wheels. The interior was well-appointed with comfortable seats, high-quality materials, and a driver-focused cockpit. The B5 S4 was not only a performance car but also a practical and refined daily driver. The B5 S4 remains a sought-after model among Audi enthusiasts due to its turbocharged engine, Quattro all-wheel drive, and timeless design. Its twin-turbo V6 provided a thrilling driving experience that set a new standard for performance sedans in its class.

The B6 and B7 Generations (2003-2008): Naturally Aspirated Power

Interestingly, after the B5 generation, Audi temporarily moved away from turbocharging for the S4. The B6 (2003-2005) and B7 (2005-2008) generations featured a 4.2-liter naturally aspirated V8 engine. While these models offered impressive power and a fantastic exhaust note, they did not have the turbocharged performance of the B5.

The B6 S4, produced from 2003 to 2005, was powered by a 4.2-liter naturally aspirated V8 engine that produced 340 horsepower and 302 lb-ft of torque. This engine provided smooth and linear power delivery, making the B6 S4 a joy to drive on both city streets and winding roads. The B6 S4 also featured Audi's signature Quattro all-wheel-drive system, which enhanced traction and handling in all weather conditions. The B6 S4 was available with either a manual or automatic transmission, catering to different driving preferences. The B6 S4's naturally aspirated V8 engine delivered a distinctive and sporty exhaust note, enhancing the overall driving experience. This engine provided strong acceleration and a thrilling sound that appealed to driving enthusiasts. The B6 S4 combined luxury, performance, and style in a well-rounded package.

The B7 S4, produced from 2005 to 2008, continued with the same 4.2-liter naturally aspirated V8 engine as the B6 S4. The B7 S4 featured several styling and technological updates compared to the B6 S4. The B7 S4 offered a refined and engaging driving experience. The B7 S4 maintained Audi's reputation for quality and performance. Both the B6 and B7 S4 generations provided a unique driving experience with their high-revving V8 engines and precise handling. While they lacked the turbocharged punch of the B5 S4, they offered a different kind of performance that was appreciated by many drivers. The naturally aspirated V8 engine provided a smooth and linear power delivery, making these models enjoyable for daily driving and spirited runs on winding roads.

The Return of Turbocharging: The B8 Generation (2009-2016)

Audi reintroduced turbocharging to the S4 with the B8 generation, produced from 2009 to 2016. This time, the S4 was powered by a 3.0-liter supercharged V6 engine, which produced 333 horsepower and 325 lb-ft of torque. While technically supercharged rather than turbocharged, the B8 S4 offered similar benefits in terms of increased power and improved performance.

The B8 S4's supercharged V6 engine provided instant throttle response and a broad torque curve, making it feel quick and responsive in all driving situations. The supercharger delivered boost almost immediately, eliminating the lag that can sometimes be associated with turbocharged engines. The B8 S4 also featured Audi's Quattro all-wheel-drive system, which provided excellent traction and handling. The B8 S4 was available with either a manual or dual-clutch automatic transmission, offering drivers a choice between traditional driving engagement and modern convenience. The B8 S4's combination of supercharged power, all-wheel drive, and refined styling made it a popular choice among performance sedan enthusiasts.

The B8 S4 also saw improvements in fuel efficiency compared to the previous V8-powered models. The supercharged V6 engine delivered a good balance of power and efficiency, making the B8 S4 a practical choice for daily driving. The B8 S4's interior was well-appointed with high-quality materials and advanced technology features, providing a comfortable and enjoyable driving experience. The B8 S4's exterior design was also updated with sharper lines and a more aggressive stance, giving it a more modern and sporty appearance. The B8 S4 remains a popular model among Audi enthusiasts due to its supercharged engine, Quattro all-wheel drive, and refined driving dynamics.

The B9 Generation (2017-Present): Continuing the Turbocharged Legacy

The current B9 generation of the Audi S4, introduced in 2017, continues the turbocharged legacy. This generation is powered by a 3.0-liter turbocharged V6 engine, which produces 349 horsepower and 369 lb-ft of torque. The B9 S4 offers even better performance than its predecessor, with quicker acceleration and improved handling.

The B9 S4's turbocharged V6 engine delivers strong performance and excellent fuel efficiency. The turbocharger provides a significant boost in power, allowing the B9 S4 to accelerate quickly and confidently. The B9 S4 also features Audi's Quattro all-wheel-drive system, which enhances traction and stability in all driving conditions. The B9 S4 is available with an eight-speed automatic transmission, which provides smooth and precise gear changes. The B9 S4's interior is luxurious and well-equipped, with comfortable seats, advanced technology features, and high-quality materials. The B9 S4's exterior design is sleek and modern, with sharp lines and a sporty stance.

The B9 S4 also incorporates the latest technology features, such as Audi's virtual cockpit, which provides a customizable display of important vehicle information. The B9 S4's driving dynamics are refined and engaging, making it a joy to drive on both city streets and winding roads. The B9 S4's combination of turbocharged power, all-wheel drive, and advanced technology makes it a top choice in the compact performance sedan segment. The B9 S4 represents the pinnacle of Audi's engineering and design expertise, offering a thrilling driving experience and a luxurious interior. The B9 S4 continues to be a popular model among Audi enthusiasts due to its performance, technology, and refinement.

Conclusion

So, to answer the question, the first turbocharged Audi S4 was the B5 generation, produced from 1997 to 2002. While there was a period where Audi used a naturally aspirated engine, they have since returned to using forced induction to power the S4, ensuring it remains a competitive and exciting performance sedan. From the twin-turbo B5 to the supercharged B8 and the turbocharged B9, the Audi S4 has consistently delivered impressive performance and a thrilling driving experience.