How about no more speed limit on boring long straight uneventful Arizona interstates? I'm all for it. No one is very likely to drive much more than a 100... and most already are going 80, there isn't much difference.

Arizona Rep. Nick Kupper has an idea that could make the state’s highways decidedly less mundane by removing speed limits on certain rural roads during the daytime. Even at night, the proposal suggests that 80 miles per hour is plenty safe on a route like Interstate 8 south of Casa Grande.

House Bill 2059 after practices in Montana and Germany, with the latter being famous among gearheads for its autobahns. While some German autobahns feature posted speed limits, others do not. That means anybody in a V12 supercar can fly by VW Golf hatchbacks at top speed without worry of being pulled over.

“Both found that roughly 83% of drivers stayed around 77 mph because that’s where they feel comfortable,” Kupper explained. “Drivers in these zones tend to keep a closer relative speed to each other compared to speed limit zones which is a major factor in why these zones are actually safer.”

The RAPID Act specifically says that derestricted speed zones can only be designated “outside an urbanized area with a population of 50,000 or more persons.” Additionally, the highway segment must have a crash rate below the statewide average based on data from the last five years.

https://www.thedrive.com/news/arizona-bill-considers-removing-speed-limits-from-rural-interstates