I hope this is a wind up!

What colour is the budgie?

And I’m sure you look a hunk in them Cyber🤣🤣

The problem with my wife M is she’ll read anything- and this proves it- ANYTHING! 😂😂

I was not always a good boy though regarding speed!

Sometimes a misspent youth can come in handy. About 4 years ago I was driving the X-Trail solo with OH going to meet up with friends at a hotel when satnav said there was a possible left turn shortcut off the dual carriageway. Obviously I was not paying attention to satnav! Pulled onto turn off slip at 70 and hit the brakes hard. Trouble was that the bitmac surface had deteriorated and was tearing up under heavy breaking instead of slowing me down as expected. There was no way that at the speed that I still had I was going to make the turn and would plough into the splitter island. Instinct took over and to loose speed I put the X-Trail into reverse lock and slewed around he turning. 

I reported the state of the road to the local Road Construction Unit and was amazed to see on our return home only 5 days later that the exit was being resurfaced. 

Certainly I would think there is scope for reducing the leeway on those average speed limits. We have several on local roads. Mainly 50mph, but a few 30mph. Given that you are monitored over a mile or more, it should not be that difficult to keep within the limit.

How many people use the leeway as an excuse to break the limit? So 70 on a motorway becomes 75 or 77 as they know they will not get caught? 

I think it is more important to strictly keep to the lower limits, certainly at 20 and/or 30, as these are always in built up areas where those extra few mph could cause more injuries. 

Couldn’t agree more corners- 30mph is far too fast down our street! Most are braindead- it’s 39 so they drive at 39 or more. 2 cats have been killed but no children yet thank God! 

Oops- 30 so they drive at 30 etc - fingers like bananas! 🤣🤣

Just a note of caution for those of us, like me who tend to use the sat nav speed as an indicator rather than the vehicle speedometer...

I did read somewhere, that the sat nav of course, relies on GPS and therefore gives a birds eye view and the horizontal speed across the ground. If you are going down ( or indeed up) a steep hill your actual speed on the road may well, as a result, be higher than that indicated by the sat nav...

It makes sense to me, but "O" level geometry was a very long time ago. 

A GPS will also measure altitude, I suppose it's accuracy on a slope will depend on if it uses that in the calculation as well.