TfL expands London Overground rolling stock order

TfL have announced that all trains on the North London Line will be lengthened to 4 carriages in early 2011. They've also ordered 3 extra trains for the East London Line fleet, to be delivered at the same time, possibly corresponding to the extension from Dalston Junction to Highbury & Islington.

The new total is 188 cars, which still leaves us short of the 256 previously discussed. Also no mention of the new Goblin stock, which may also be built by Bombardier.