Originally Posted by Vjo

I dont know about the desert but in the northern US 130+ is never safe for one reason..

Deer.

Hit one at that speed will f you up. And on every public road north of The Mason Dixon line, you can come up on one or more at anytime.

It will dart out and you wont have a prayer no matter how good a driver you are.

Hitting one in a Porsche at 70 and you may be OK. At 130 almost double the force. Like hitting two deer.

Force = Mass x Accelleration if I remember right. Both are equal factors.