 By 1899 the MR and the O & AT were cooperating closely . Although the line had been upgraded in preparation for the Oxford extension and had been authorised as a railway in 1894 , construction of the extension had yet to begin . On 27 November the MR arranged to lease the Tramway from the O & AT , for an annual fee of £ 600 ( about £ 61 @,@ 000 in 2016 ) with an option to buy the line outright . From 1 December 1899 , the MR took over all operations on the Tramway . The O & AT 's single passenger coach , a relic of Wotton Tramway days , was removed from its wheels and used as a <unk> 's hut at Brill . An elderly Brown , Marshalls and Co passenger coach was transferred to the line to replace it , and a section of each platform was raised to accommodate the higher doors of this coach , using earth and old railway sleepers . 
