One of the biggest things that i keep seeing said is that it would be unfun for people, I personally disagree completely with that statement maybe i am a minority here but i know of at least 2 people who find it extremely fun to drive at high rates of speed. I cannot entirely speak for the other person, but i know that i myself as well as miller enjoy fast vehicles and driving at high rates of speed. For me its the thrill the adrenaline dump i love it. I personally have never technically ran from the police IRL, but i do know people who have on motorcycles and they too say its the adrenaline dump, i may think they are kinda retarded for it but its out there and people do find it fun in game and IRL.
That being said also if you look at any server you will see that people often go for the fastest and nicest cars. Its obvious to me that people find fast vehicles extremely fun. However i also understand the balancing and Handling part. I know that it will take ages to balance every vehicle and they will need constant tweaking and work. I know that when dealing with handling there was to be a line between realistic and a video game (this is why i changed the name in the post to Modified vehicle speeds and handling) because if the driving is too realistic and people will find it unfun. Why wouldn't they if you limit the ability to even control the car at high speeds to were the second you touch anything your doing 20 donuts and dying, but i know that it must be somewhat realistic you cant just allow someone in a car to be taking turns at 300 mph because well that is death.
This would be a massive balancing game of finding what the community feels right and balancing vehicles to keep things fair for the police and fun for the civilians. Also i know this would take ages as you guys said and i personally am well aware of that, and there will always be those bugs of cars spawning in front of you and things for those with worse off computers. However at that point it kinda becomes a welcome to arma type deal for all those familiar with it. though there are ways to help fix that probably whether it be lowering AI population or whatever it will always be an issue and people will learn and adapt to ways around it.
Now for the police as you said people have to understand with civilian cars being faster police cars will become faster it is only fair, however this is where people get angry and issues arise, and balancing becomes a huge part. Police cars should be able to do what most standard civilian cars do my 2002 Chevy cavalier aint coming no where close to outrunning a cop. hell even a 2018 trax will not outrun a cop. this comes down to not really top speed per say but just the overall handling and controllable of a car when it comes to outrunning cops. Yes the my motorcycle is way faster then a cop car, yes millers mustang is way faster then cop cars. however the police have resources and 100 things to help give them an edge and overpower people who chose to run and things like that whether it be spike strips, helicopters, road blocks, hell their training. It is ok for cops to not have the fastest and best cars in the city because that's real they don't in real life, but what they do have are tactics, training, and resources. Rather then out muscle your opponent as a cop you outsmart them.
Now for my last point you said people would choose to go for the fastest car rather then the car that suits their character. Though i do agree with this statement in a way if there is only 1 or 2 cars that are just the best of the best and i mean noticeably #balancing then you are right. If the 2019 mustang goes 350 mph and handles like a absolute champ why wouldn't people want it. It's important to give people options to give them a diverse group of vehicles that are good not just one, each one having there own faults maybe breaking, maybe handling in bad weather, maybe flip easy, maybe it slides a lot, those are things that would have to be balanced and looked into. No matter what you do people will always go for the nice or fastest car, to say it doesn't suit there character really isn't up to you its up to the person playing the character. I understand that people will just straight up buy the fastest car to run from the cops to heist and stuff, but maybe there character is someone who does those things, its an investment for them. Police if they don't they definitely should have the power to crush vehicles whether its done through admin abilities or what,, there should be a way for cops to complete take peoples vehicles if they are repeat offenders and things. however back to the cars that is all balancing if a car is to over powered it can and should be altered this is all a trial and error ordeal, i'm sure you all are aware of that. There is a point when balancing has to come before what the community wants, because as you guys grow your going to have those people who only do crimes and things and they will aim for these type of cars and be dumb with them.
However with diversity in vehicles and a lot of balancing work i know it can be done i know it will take time and its a huge process, but it can be done. To me personally i would put this on a back burner until things more important are complete, hell we dont even have custom cars yet. This was simply something that i felt the post before didn't explain to well of what they wanted, and i wanted to take a different approach. I really want to hear what others think of this as well as how we can make it better and how we can fix any other problems, or point out any problems we may run into doing this. I know that in the end this has to be fair and fun for everyone and the work that this will take will be a lot and its not something needed right at this moment, but i wanted to put something a little more detailed out there for people to converse over and discuss. I apologize for the 5000 word message.