OneMarcil,
The reason for having a device like this is to prevent speeding, not to allow it. Imagine having your wife/partner sitting next to you whenever you drive, pointing out speed limits, accident blackspots, dangerous junctions etc. Would this make you a safer or more dangerous driver?
By the way, having driven now for 50 years I'm not a boy racer - I just don't want my old age pension being taken if I absent-mindedly go at 33 mph for 100 yards.