The 2018 S4 0-60 mph time is a benchmark that encapsulates the blend of refined luxury and raw performance that defines the Audi S4. This specific metric, representing the interval between a standing start and the point where the sedan reaches sixty miles per hour, serves as a gateway to understanding the capabilities of this iconic B8 platform machine. While the official figure sits impressively in the low 4-second range, the true story lies in the engineering that makes this acceleration feel both effortless and intoxicating.
The Heart of the Performance: The 2.9-Liter TFSI Engine
At the core of the 2018 S4’s impressive 0-60 performance is the 2.9-liter, twin-turbocharged V6 engine, known internally as the EA839. This powerplant is a masterpiece of German engineering, producing 349 horsepower and 310 lb-ft of torque. The inclusion of two turbochargers, one per cylinder bank, effectively eliminates lag and delivers a surge of power across the rev range. This specific configuration was a significant departure from the previous generation’s naturally aspirated V6, providing a more visceral and responsive driving experience that directly translates to a quicker 0-60 mph time.
Quattro All-Wheel-Drive System
Power alone does not dictate acceleration; the ability to transmit that power to the road is equally crucial. The 2018 S4 utilizes Audi’s legendary Quattro all-wheel-drive system, which is central to achieving its swift 0-60 mph time. This system intelligently distributes torque between the front and rear wheels, ensuring maximum traction in various driving conditions. When the driver demands acceleration, the Quattro system sends power to the wheels with the most grip, minimizing wheel spin and maximizing the transfer of the engine’s 349 horsepower to the pavement, a critical factor in those initial few seconds.
Transmission and Drivetrain Dynamics
The power generated by the EA839 engine is channeled through an 8-speed automatic transmission, specifically the Tiptronic variant. This transmission is not merely a conduit but an active participant in the performance narrative. Its sophisticated programming allows for lightning-fast shifts, often imperceptible to the driver, which keeps the engine within its optimal power band. The close ratios of the gearset ensure that the engine can rev to its redline efficiently, contributing directly to the aggressive nature of the 2018 S4’s 0-60 mph acceleration.
Weight Distribution and Chassis Engineering
Audi’s engineers did not stop at power and traction; they meticulously addressed weight distribution and chassis dynamics to complement the S4’s performance. The engine’s position, combined with the Quattro system, provides a near-perfect 55:45 front-to-rear weight distribution. This balanced platform enhances stability during hard acceleration, preventing the nose from dipping excessively. The adaptive air suspension, standard in the S4, further refines the experience by maintaining optimal contact patch for the tires, ensuring that the force generated by the 0-60 mph sprint is efficiently directed forward.
