RAC and AA rates have been used by the consultants to determine the cost for car travel as they provided a better basis for the RET pilot scheme than the HMRC (Customs and Excise) rate of 40p per mile, given that rate has not been updated for some time. The figure of 60p per mile has been set. This will be applied to the routes involved, on a list of set distances determined by the consultants, with the addition of a core fare for cars of £5 per journey. It has also been determined that the total RET fare should, in no circumstances, exceed current lowest priced journeys in 2008. The RET pilot has been developed on the basis that it is affordable and within the budget provided for RET in the recent spending review.