While the Audi RS4 gets all the attention when talking about Audis 2000s sports sedans, its less powerful sibling is an ...

the S4 is the mid-level performance version of the Audi A4 saloon. Swapping between twin-turbocharged, supercharged V6 and even a naturally aspirated V8 engine in times gone by, the B9 S4 returned ...

The Audi A4 and S4 are a compact ... A turbocharged engine and advanced chassis make the A4 feel lively, while it's finely crafted interior is practically dripping with quality. A supercharged V6 in ...