the sensible majority wrote:
I'm so sorry to have a lifeoutside cyberspace, Before I answere could I ask safe for whom, the driver of the car or any other car on the road, a motorcyle, cycle or pedestrian?
you are asked at what speed does travelling in car become unsafe.
In fairness I think it ist subjective.
For example - am perfectly happy if Mad Doc drive at over the ton with me as passenger. Ist usually in Germany or on track. The only other time he did this was when whisking me to hospital on green light. Even then he did right thing - told authorities und asked for escort. Ist not to dwell.... I now have deepest dislike of hospital beds ... und imminent kittens make decisions beyond my control....
If my eldest (he ist 18 (August baby) were to drive at such speed - I would urge caution. William ist IAM qualified und steady. But he ist still building up his expertise.. so I would urge cautions und to hone up skills und build on the "dealing with the numpty" skill.
But ist all about COAST. There are roads which you would never dream of driving to limit. You drive BELOW! Ist common sense - nicht?
Yet.. urban duals und other fast road which look like faster roads und no obvious reason to be set at 30 mph und empty motorways.. at 3 a.m und I have travelled at such time when returning from holiday with my Papa und Mama back in my original "Heimat" - you could "test your motor" without becoming "unsafe" as there ist not one soul around as they do tend to sleep at this ungodly hour
So - does depend on condition as to when a speed become "unsafe" for anyone on road.
I think we go full circle again.. back to C O A S T

as model for purrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr- fektion !
Lieber IG hat Recht!
I think this would be most correct answer.