Like its larger S6 TDI and S7 TDI counterparts, the Audi S4 has adopted a diesel engine – at least in the European market. Strange move? Perhaps, but with diesel still a popular choice in this ...
Despite the increasing popularity of SUVs, the A4 continues to be the biggest seller for Audi, making up 20 per ... the latter powering the new S4 TDI. Three petrol versions are also available ...