In February 2007, overcrowding on Wellington trains resulted in the recommendation by the Greater Wellington Regional Council to re-introduce two DM/D units, one former Tranz Metro unit stored at Hutt Workshops as a source of spare parts and another from the Ferrymead Railway. These units entered service from October 2008. With no further DM/D sets available, the two overhauled sets were joined as a short-term measure by six ex-British Rail carriages rebuilt at Hillside Workshops as the SE class and worked in push-pull service by two Toshiba EO class locomotives.