When you purchase a new car there are a lot of things that you yourself can do to help keep your insurance rates and premiums down. For example, simply by installing some anti theft devices can really help you out financially. Car insurance companies love it when drivers take the initiative to keep their cars safe and secure. And to that end, try to get a third party to do the installing rather than the car dealer; it is considerably less expensive that way.
You can also help yourself out by keeping certain things off of your new car. For example, some add ons can make your rates go up, because they act a bit like red flags. Specifically, spoilers, custom exhaust systems, and things of that nature are not really necessary, in part because your car insurance company likely will not reimburse you what they are worth if you have to file a claim.