It was a 60mph speed limit and the OP was only doing an indicated 51mph on the dashcam when the Ferrari hit him. Had the Ferrari not sideswiped the OP, I expect the OP would have got up to about 60mph before moving back onto the left side of the single carriageway, about 5 seconds or 150 yards further up the road.
The Ferrari doesn't influence my judgement because had it been a Fabia, my judgement would be the same.
On 60mph speed limit single carriageways many drivers do choose to drive at 60mph. However, I can see a yellow sign on a photograph dated March 2023 on google maps steetview near the accident spot that says "New 40mph Speed Limit Proposed Here" so that would indicate that the council aren't happy with drivers doing 60mph along that section of road. Maybe it's an accident blackspot.
"New 40mph Speed Limit Proposed Here" sign shown on google maps streetview (photo dated March 2023)
https://www.google.com/maps/@51.2409309,-0.5210647,3a,15y,101.98h,83.81t/data=!3m6!1e1!3m4!1s12ZfSmzt1z2_ylHZJ4SImg!2e0!7i16384!8i8192?entry=ttu