This video from oorail.com shows how to update old Tri-ang and Hornby Railways Tank Wagons for use on a modern layout. The video uses the Tri-ang BP Tank Wagon R.12 and the Hornby Railways Esso Tank Wagon R.096 to demonstrate how these old and very plastic looking pieces of rolling stock can be transformed as to not look out of place next to modern Bachmann and Hornby locomotives. These tank wagons can be picked up second hand very cheaply and are a great way to extend your fleet.