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2009 Audi S4 Cabriolet HighlightsTechnology

Advanced automotive technological innovation has always been at the core of every Audi and the S4 Cabriolet embodies that commitment perfectly.

Audi Xenon Plus Headlights

Audi xenon plus headlights produce about twice as much light as comparable halogen headlights, and make night driving, particularly in poor weather, safer and less tiring for the driver's eyes.

quattro® All-wheel Drive

In Audi vehicles with a longitudinal engine configuration,

quattro®

Audi's quattro® permanent all-wheel drive, has had over 25-year-long tradition.

quattro®
is essentially a mechanical system with a self-locking

Center Differential

To compensate for the different wheel velocities between the front and rear suspensions, quattro® permanent all-wheel drive has an additional center differential between the front and rear suspensions.

center differential
and continuously variable

Torque

Torque is what causes rotational speed to change. Just as greater net forces cause greater linear accelerations, greater torques cause greater rotational or angular accelerations.

torque
distribution. quattro® instantly responds to wheel speed differences and dynamically adjusts power to the wheels with the best traction. It is supported by advanced electronic control systems that together offer numerous benefits over other all-wheel drive systems. The latest version of quattro® offers sports car-like performance and handling with uncompromised all-wheel drive traction. The power of quattro® is its ability to inspire driver confidence, giving you traction when you need it, where you need it, regardless of road conditions.

Servotronic® Speed Sensitive Steering

Servotronic®

Servotronic® is speed-dependent power steering in which the amount of servo assist provided is dictated by road speed

Servotronic®
steering, which adapts steering resistance depending on speed, allows for an easier steering feel during slow speeds and a firmer, sportier feel during spirited driving.