AlexS
Established Member
101s out of mainline service back in 2003. Different builders too - 101s were a MetCam product, 117s were Pressed Steel. The 117s had a high density layout on the body, similar to the VEPs if that makes it easier. The MetCams had a different front end to the standard BR Derby/Pressed Steel DMUs (those being the 108/115/116/117/121 units). MetCams had a low density external structure, but high density 3+2 seating arrangement.