66616 passes South Marston on 13 January 2022 with the 6C48 12:49 Appleford to Whatley Quarry stone empties. This had left over an hour early, but sat at Challow until almost its booked time, so was a mere 4 minutes early here. Delays later on in the Westbury area, saw it arrive at its destination over 100 minutes behind time!