This new S4 Avant not only has Audi’s fast estate honour to upload, but faces tougher competition than ever before. It was inevitable that with today’s trend for turbocharged engines the new ...

Audi will add a new S4 Avant to its lineup at Geneva, following on from the S4 it revealed last year at the Frankfurt motor show. Based on the latest-generation A4 Avant that debuted last year ...