Clemmow Hornby Inge (page 1) and 180 Amsterdam (page 20) are the most recent agencies to benefit, while Delaney Lund Knox Warren & Partners has been picking off pan-European General Motors briefs for the past 12 months.
Car clients have historically shown a surprising tendency towards fidelity, sticking to their chosen networks for years - not least because all the others already had a conflicting account.
The problem for the likes of Saatchi & Saatchi and McCann Erickson is that as markets in Europe become more homogenous, the networks are losing what has historically been their biggest strength. After all, if you don't need a different idea for each domestic market, then why should you pay for a network to work on your account?
The car companies are under extreme pressure to improve their global margins and they will continue to turn to pan-European campaigns devised by small, hungry advertising agencies until the networks can start showing them similar cost savings.
The networks find themselves in a difficult position. They either have to undercut their own prices by offering pan-European campaigns, or devise such effective creative work that they are able to charge a premium.