This is not quite the ordinary Cotswold Line passenger train that it appears to be. On Monday 3 August 2026, GWR ran a series of additional trains from Charlbury to London to cater for festival goers returning from the Wilderness Festival, which had been held over the weekend in Cornbury Park. As the special trains started at Charlbury, they had to run empty stock from Oxford, via a reversal at Moreton-in-Marsh. 800007 is pictured passing Chilson with the 5Z17 08:20 Oxford to Charlbury ECS, which would later form the 1Z17 09:38 Charlbury to Paddington service.