DRS class 57 57010 on Thunderbird duty at Norwich Station on 10th December 2010.
57010 started life as D1907, entering traffic in September 1965 (almost a year to the day before I was born!). It became 47231 in October 1973, and 57010 following refurbishment and re-engining by Brush in February 2000. Prior to use by DRS it was in service with Freightliner and named "Freightliner Crusader".
This shot was handheld (0.5 sec at f4 on ISO 1600) - something you could just never get away with in the days of film. Although the result is a little noisy, a run through Helicon Filter cleans that up nicely.
Since I took this photo I've upgraded from a Canon EOS 350D to an EOS 550D which has a quite frankly incredible maximum ISO of 12400.