What motorsport success has the silvertop Zetec had?

The Mondeo BTCC car used a V6 engine, the WRC cars used a Cosworth engine?

The RS2000 rally cars used a 280BHP n/a I4 engine though, so surely they have more motorsport heritage? I thought the Zetec only really got motorsport use with the black top, like the CGI block in the Focus WRC cars?

Correct me if I'm wrong though