Organisers of the A1GP World Cup of Motorsport insist that the series remains committed to switching to a 30 per cent bio-ethanol fuel mix despite technical issues delaying its introduction beyond the start of the 2007-08 season.

While the E30 fuel mix has been successfully tested over a total of 4600km at Silverstone and Snetterton, the project's technical team - consisting of experts from A1GP, engine suppliers Zytek and fuel provider PetroChem Carless - remain unconvinced that the fuel blend will continue to give the required engine performance over a more sustained period of time.

A1GP has therefore reluctantly reverted to its regular 102 octane fuel while further development and testing work continues to rectify the situation. The intention remains to introduce biofuel to the series as quickly as possible.

"It is highly regrettable that we have not been able to start A1GP's third season running on our planned biofuel mix," A1GP's chief executive officer, Pete da Silva, said, "We have undertaken 4600 kilometres of testing, which has already successfully demonstrated that an international race series can remain exciting and competitive while also taking account of its environmental impact. However, we must ensure that the long-term impact of our fuel change does not impact on our on-track action.

"The launch of our THINK Greener Racing policy at Silverstone last month was warmly accepted by the industry and key environmental leaders and remains at the centre of our business strategy moving forward."



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