Hi

I have read that the reason why we don't have 5 mph increments in our UK speed limits is that our speedometers are not marked in 5 mph increments. However, the USA has 5 mph increments in their speed limits. Does this mean that imported Land Rovers (and other cars) have to have their speedoments replaced?

I ask because in the UK there are situations where 20 mph is too slow and 30 mph is too fast so the solution would be a 25 mph limit.

I have had a closer look at my disco speedo and there are intermediate marks for 5 mph, so I am at a loss to understand what validity the explanation has: here's the full quote:

"All UK speed limits must be in multiples of 10 mph, as there is no requirement for vehicle speedometers to show increments of less than 10 mph (although in practice most have 5 mph increments). Thus the option does not exist to have 35 mph or 45 mph limits as are commonly found in the USA. It is an irritating feature of many speedometers that the numbers shown are 20, 40, 60, 80 etc. when the two most important speed limits to most drivers are 30 mph and 70 mph." http://www.speedlimit.org.uk/speed_markings.html



Geoff