What is your guaranteed, worst-case, no-anxiety range?

[GRA]

Although posts from other threads may violate one or more of my criteria, I'm going to try to provide links here to any that seem relevant to normal, worst-case driving.

http://www.mynissanleaf.com/viewtopic.php?f=31&t=7124" onclick="window.open(this.href);return false;

http://www.mynissanleaf.com/viewtopic.php?f=31&t=7166&start=10" onclick="window.open(this.href);return false;

http://www.mynissanleaf.com/viewtopic.php?f=31&t=3512&start=60" onclick="window.open(this.href);return false;

http://www.mynissanleaf.com/viewtopic.php?f=24&t=357&start=640" onclick="window.open(this.href);return false;

http://www.mynissanleaf.com/viewtopic.php?f=9&t=7612&start=20" onclick="window.open(this.href);return false;