Insurance (california)?

Simply how much might my insurance premium increase be? Car accident.?
Which will be greatest standard insurance to consider?
Desire a car-but just how much will be the insurance?
I do want to select my  insurance  rather?
"I'm a 15 yearold kid who lives in Italy. Here at 14's age you will get a 50cc and in the age of 16 you will get a 125cc