Grizzled has the right idea, emphasising the 'punative' concept, but I think it's falling on deaf American ears. Remember, this is the country with the second highest percentage of population in prison in the world (to South Africa). For a long time, the concept of 'rehabilitation' was given lip service in the American justice system, but now that facade isn't even there. It's clear to me that 'punative' is the only mode in which the American justice system operates. Your emphesis, therefore, falls on deaf ears. We don't understand anything but punative, and therefore are incapable of following your concepts.
The thing is, this wouldn't be a thing to try to "be fair" or "deter speeding" . . . it'd be an attempt to make more money. Seems like a good way to raise more money while hiding it under the guise of being fair and deterring speeding. And obviously this wasn't thought out very thoroughly. What would happen if wealthier people paid more . . . you'd start seeing A LOT more Jaguars and Mercedes being pulled over. What's the point in trying to just catch speeders for the ticket quota (which we all know doesn't exist *wink wink*) when you could catch speeders who have to pay more! You could catch 10 middle income speeders or 3 rich speeders!! Cops would be looking to pull over those in nice cars because it pays off better. They could well ignore the crummy cars that are speeding because that doesn't make any money and it might tie the cop up when there's a rich guy speeding by . . .
He, he... Actually I think this'd be a good way for those of you who support 'racial profiling' to understand how it feels to be the one profiled. I can tell you now, that if you're a hispanic man driving a '84 Toyota Corolla through River Oaks, you're going to get pulled over. I don't see how different this'd be.
Hmmm… I thought that given the punitive bent of Americans you might take to this idea. I kinda like the idea, but I'm not completely sold on it. It's hardly revolutionary, as it seems that most northern European countries have some form of it, some dating back to the 1930's, so I wonder why it hasn't been tried in North America?