@ storm ....
as u can see ... a lorry doing 55mph overtook both of us now that makes sense.
However I know Defender can do better than that, just for an extra secure measure he was driving slow
its M42 Near Birm'G. Its a very very very notorious road ever known to me. Speedcameras (in overhead structures as u can see - dedicated speed camera for every lane). even then a lorry overtook us- we must be doing around 40-45mph.