Just watching this and they stopped a guy in an Audi TT for doing 116 in a 70. Took them 10 mins to catch up with him and he was also doing 60 through a 30.
When they stop him it turns out it wasn't his car, he works for an Audi garage and the car had just been in for a service and he was delivering it back to the customer.
They gave him a summons as they said he was too far above the threshold to deal with by way of a fixed penalty.
This probably goes on far more than we want to think about with our cars
P.S. Interestingly when they were sitting in a lay-by clocking the speed of cars the cop said they're never really interested in folk doing 5, 10, 15 mph above the speed limit (it was a 70 mph zone). He said it was the folk doing a good bit more than that which they class as dangerous.