Definitely excessive.

[Burbler]

I often went out with the boss in one of my first jobs (late 60s) mostly on the M4 corridor between Cardiff and Reading. He would rarely fall below three figures in the 3 l Granada and regularly cruised at 115 or so. Didn't seem a problem at the time.

[wiltshire builders]

I often went out with the boss in one of my first jobs (late 60s) mostly on the M4 corridor between Cardiff and Reading. He would rarely fall below three figures in the 3 l Granada and regularly cruised at 115 or so. Didn't seem a problem at the time.

It probably wasn't. I bet there was a quarter of the traffic on the road.
There are so many people who jump on speed as being a killer. It like a loaded gun. On its own it's harmless. Throw a d*ckhead into the mix and that's when people start getting hurt.

I remember My dad telling me about when he used to work for Marcos cars and was driving the van down the M4 when a Ford GT40, in full race livery complete with flames shooting out of the pipes, passed him so fast it shook the van.
Maybe it was a 3l Granada?