Johannesburg - Automobile industry strikers will march to Naamsa's offices in Pretoria today (Sept 3) to hand over demands to the automakers' body.A National Union of Metalworkers of SA (Numsa) spokesman said: "The march is part of our organisational strategy, a tactical tool to force the auto sector to concede to workers' demands."PROSPECTS IN PERILThe strike is now in its third week. The strikers have rejected an industry pay increase of a 10% while, Naamsa says, their actions are undermining the country's international reputation for being a reliable supplier of new vehicles."Unless the strike ends in the next few days the damage to prospects and foreign investment sentiment could be far-reaching and take years to redress."Seven major vehicle plants are affected by the strike - BMW, Ford, General Motors, Mercedes-Benz, Nissan, Toyota, and Volkswagen.