I think some people are taking a slipper slope here a bit.
Let me explain,
I am not drag racing, drifting, or the idiot who is 6 inches off your bumper or zinging through traffic (or yes residential areas) at a high rate of speed.
I have a 4 cylinder Altima.
I am in my car 5-8 hours a day on a sales route. Too many times lately I have rounded a turn and seen a motorcycle cop pointing a detector at me.
I have had one speeding ticket in my life and that was 10 years ago.
It is just too easy to be driving a bit over the speed limit and suddenly be zapped by a policeman. Who hasn't?
I don't need an adult driving me around, and If I do get a ticket, believe me I will pay it as I obviously was doing something wrong.
I just want to know if there is a speed trap around and not get caught off guard and spend the next quarter mile looking in my rear view mirror to see if I am the one to get pulled over.
Tap
Ok lets look at a couple things here.
You drive quite a bit, fine no big deal. Number of cylinders is irrelevant it's how far you push the throttle that counts.
You had one speeding ticket in 10 years, fine. Why do you need a radar detector then? If you are not speeding you don't need to worry about it do you.
It's not any easier to drive over the limit than it is to drive at the limit. Either is your personal choice.
In your scenario if you round a corner and get "zapped" the detector will just tell you one thing. You've already been clocked. The detector will not tell you if you are over or under the limit, just that you've been painted. You should already know what the limit is. If you are over it then the detector hasn't helped you a bit has it? Same thing for the ubiquitous speed trap.
Frankly speaking, you don't want a detector to warn you of a speed trap, you want it as a means of insurance to allow you to speed and not get caught.
Traffic regulations are not intended to gain "revenue". They are intended to allow people to drive and have many vehicles on the roadway in such a manner that they do not constantly crash into each other. While driving, each driver is supposed to have the reasonable expectation that the other drivers are operating their vehicles within certain parameters in a given area. How do you think it would work to drive where you have no reasonable expectation that other cars will stop at stop signs, red lights, stay on one side of the road or drive at an expected speed? Would you make that left turn if you were not reasonable sure the car a block ahead was not going 35 MPH vs 85? Would it make any difference to you if there was no speed limit at all? How about the car coming up behind you from around that curve, will he be able to stop in time to keep from hitting you if he's at 45 MPH vs 75? Keep in mind that all of the cars would then be going as fast as the driver wanted. Slow, fast or in between it's a crap shoot as to what speed any car would be traveling at. How would you like that situation? Add in multiple lanes going each direction with intersections and vehicles of all sizes like we have now. Maybe you can see all of them, maybe not and they all will drive in a manner that the individual driver wants to.