On Thu, 2 Feb 2012 12:15:30 -0000, "dennis@home"
wrote:

I haven't.
If you can judge your speed without referring to your speedo you lack
experience.

I assume you meant, "... can't judge your speed ..."

I will take a bet that if you were to cover your speedometer and state
what speed you think you are driving as you take a drive along several
roads of varying surface type, many of your judgements will be out by
quite a margin. In particular the range between 30MPH and 50MPH is
especially hard to judge in most modern cars without fairly frequent
references to the speedo, and an error of 10MPH is very likely.

For example you don't need to look at your tacho to know when to change
gears, you use other indicators.

Mainly the engine sound. Try the foloowing: Put on a rock music CD
and turn the volume up *loud* Cover your tacho and speedo. See how
well you cope with changing gears at the appropriate time.

--
Cynic