Mike Rutherford takes a look at a car that is a leader in it's class - the 1998 Audi A4 and S4 Avant, and finds out what the S4 has to offer in terms of performance and handling, not only against the A4 but also the nearest competitors. Plus he'll be speaking to managing director of Audi UK - Len Hunt, to find out what their sales strategy is for this model.