im wondering what best setting on a camera to take christmas lights with when u going thru a park in a car is
Not an easy question to answer but I will try.
First of all the key is that you are going in a car and I assume it is moving. At least you are not stopping and setting up for one specific composition. Therefore the time of day is equally or more important than the camera settings.
Go when it is getting dark but not there yet. You will have available light to aid in getting a good photo but dark enough to get the lighting recorded as well.
I would say that 25 minutes after the sun set is too late. Sunset to 20 minutes after is your window of opportunity. Just as the sun goes down get the lights that are shaded and dark already. As you get closer to 20 minutes after get those lights that still benefit from what light is still in the sky.
The camera that you use is important as well. My Nikon DSLR should be fine in auto for these shots. Some cameras are poor low light cameras while others are good low light cameras. What camera are you using?