Motorway speed limit

[KeithD]

so if the current limit is 70 and you already travel at 90, if the limit is increased to 80 will you now travel at 100?

Either way they'd still be breaking the law
You will be allowed to do 85mph without getting nicked .... remember that most speedo's in the UK show 5%-10% under the speed you are actually doing. Which is why when you pass a speed sign showing how fast you are doing it is always less than what your speedo tells you.

[grahamw48]

Either way they'd still be breaking the law
You will be allowed to do 85mph without getting nicked .... remember that most speedo's in the UK show 5%-10% under the speed you are actually doing. Which is why when you pass a speed sign showing how fast you are doing it is always less than what your speedo tells you.

I think you meant most speedos read OVER what you're actually doing (ie optimistic), which is usually true, yes....unless someone has fitted different size driven wheels or tyre profile.

I use my satnav when driving through areas with cameras, as it's very accurate.

Naturally, being an old bloke I only speed up when pulling out to overtake 10 or more slower cars....mainly driven by women of all ages, but normal female timid driving habits.

Been driving average 20,000 miles + a year for 42 years, only ever had 3 points, which came off in 1973.

In other words, yes I have been very LUCKY.

[Terpe]

....I use my satnav when driving through areas with cameras, as it's very accurate.

It's interesting you mention that Graham. Recently I've been using my sat-nav much more than I normally do. I noticed a good margin of difference between the speed according to the sat-nav and that of my speedo.
Looks like I can follow the sat-nav then?
No wonder everyone else is passing me on the M1 in the 50mph area.

[les_taxi]

http://ask.metafilter.com/69774/Is-s...te-speedometer

[KeithD]

I think you meant most speedos read OVER what you're actually doing (ie optimistic), which is usually true, yes....unless someone has fitted different size driven wheels or tyre profile.

No UNDER!!! If the speed sign says you are doing 50, you speedo will say 45/46 mph. You can also prove this using GPS which gives the most accurate speed reading.