The Audi S4 is a compact executive car or a sport car that was manufactured and marketed by the Audi AG part of the Volkswagen group. The Audi S4 is the high performance version of the Audi 80 car. The parts of the Audi S4 were assembled at the plant in Ingolstadt, Germany and used the Volkswagen Group C4 platform. The Audi S4 was available as a 'Quattro'. The Audi S4 was modified many times and many advanced features were used to make the car successful and to suit the requirements of the parts where it was sold.
The Audi S4 was well received and used in different parts of the World. The Audi S4 used the LF layout; longitudinal front engine with permanent four-wheel drive, 'quattro'. The Audi S4 was introduced in 1990 for the 1991 model year and is a successful model that is still manufactured and used in different parts of the world. The Audi S4 cars that were manufactured from 1991 to 1994 were part of the Audi C4 S4 and were called Typ 4A. There are totally five types the basis being Typ 4A and then B5, B6, B7 and the latest B8.