Globally, it is estimated that the number of light duty vehicles will increase, with the potential to reach 2 billion by 2040, and that petrol, including biofuel additives such as ethanol, will continue to be used in substantial quantities for road transport applications until at least 2050. The main focus of vehicle manufacturers today is to ensure their future product ranges are compatible with forthcoming legislation through the development of zero tailpipe emission electric vehicles. One unf