10.09.2018, 11:37
If you don't want to "use velocity", then it will not be possible to script it as you "explained". What the other user meant, is that you will need to create a callback for when the brake key is pressed/held (your preference), and in that callback you should lower the velocity of the vehicle manually. This can all be found in the wiki. If that's too much work for you, then you should consider hiring a scripter or just give up since you don't want to put in any effort.