My 2024 Scala I have noticed on the cruise control using it a lot on a 550 mile round trip that when set at 70mph it seems to hold that speed fine uphill and on flats on motorway but any downhill stretches the speed increases sometimes up to 80mph depending on the incline.

Is this normal? I don’t recall in 2 years ownership it doing this before unless I just didn’t notice it.

Yes, that's normal for standard cruise - there's not a lot of engine braking, so gravity will tend to take over on longer down-slopes.

Ok thank you that explains it, only seems to happen on the longer downhill sections.