[Mawr]

> if you happen to go over the limit

Yeah I hate when that "just happens" too.

> or god forbid set the cruise control above the limit

The word limit is the key here.

> Because setting the cruise control to 50 when in a 50km/h zone will have you driving 45 in reality

Dear god! I hope you somehow made it through that insufferable experience. To think of the few seconds of your life you've irreplaceably lost! Sending a virtual hug!