Arriva's E200MMC 4127 wore at least two liveries whilst in the Club area, that for Maidstone Park & Ride, when it was named "Iggy", and on the ceasing of those services, the Fastrack livery. As those services passed to Go-Ahead, 4127 was transferred north of the Thames and given the current Arriva corporate Journeymark livery.
On a route that will be reasonably familiar to our Managing Editor, it was seen here at St Albans City station on 10th May whilst on the lengthy (approx. 1hr 50 in each direction) 301 between St Albans and Stevenage.
With appearances on both this and twinned route 300, as well as the 724 and 725, St Albans is not a bad place to track down these former Kent residents. Unfortunately, 4119, which retains de-branded Fastrack livery if bustimes is to believed, chose to be inconveniently absent when it was convenient for me to be photographing!
Chris