That said, many things are a class 1 misdemeanor. Usually reckless driving is a fine similar to that of speeding. I've seen judges with stances like "1 day in jail for every mph over X" where X is usually 90,95, or 100. I think the most I've ever heard of was like 3-5 days for 100mph+, and even that was served on weekends.
Well, I heard of one guy who was given 3 months for 76 in a 55 by a very old substitute judge, much to the defendant's, Trooper's, and clerk's shock. The Trooper made it a point talk to the defendant and inform he could talk to the court clerk about the appeal process. The defendant appealed it down to a fine of around $150.
[1]https://law.lis.virginia.gov/vacode/title18.2/chapter1/secti...
VA only cares about the money. Individual cops will stop people they see doing stuff that warrants a "that's seriously unsafe, I can't just let that slide" response but the courts just see it as a revenue stream and will gladly let people plead down as long as the total shakedown is about the same. They don't care if a large chunk winds up in the lawyer's pockets because it's a giant revolving door.
Death.
But it will be enforced by the velocity squared proportionality of kinetic energy and chronically underfunded highway maintenance coupled with old highways, not the police.
At over 100, you would have a pretty high chance of spending a weekend in jail.