The emerging literature on European lobbying suggests that groups are responding to the EC’s political development by organizing themselves into supranational federations. In recent years there has been a proliferation of Euro-groups. Furthermore, empirical studies have indicated that EC decision-makers prefer to consult via such federations (Pryce 1973; see also Ch. 1). However, this preference for consultation by the Commission appears to have been made difficult by fundamental weaknesses within the Euro-groups. Drawing on evidence from the car industry, our analysis considers three main themes: the service that the Euro-group provides for participating members; the weaknesses of these groups; and the rationale for participating in such organizations. This chapter notes the widespread assumption that because Community institutions are increasingly important, there is inevitably a growth in Euro-group activity.