Renault boss: Plans for breakaway GP series still on

Plans for a breakaway Grand Prix World Championship are still on course and the major car makers will leave Formula One in 2008 as a last resort if a compromise cannot be reached.

The GPWC group, which began life with Ferrari and Ford as founder members but now numbers only Renault, Mercedes and BMW, are continuing with plans for a rival series as a way to exert pressure on F1 commercial rights holder Bernie Ecclestone.