If you decide to purchase a new or used car during the weekend and your insurer isn't available to set up coverage for your new auto, some insurers provide a grace period. But as mentioned above, you may be able to easily add a vehicle to your policy online.

A different vehicle may have different coverage needs and requirements – but you can apply some of the same coverages to your new vehicle as your old one, as long as they’re applicable.

If, say, you plan to drive your new vehicle more, however, you may want higher coverage limits. Different vehicle parts and materials might also require increased limits. Your insurer will let you know, and if you’re adding your vehicle through a mobile app, it may automatically apply the needed coverages and limits.

On the other hand, depending on your new vehicle’s make and model, crashworthiness, safety features and more, you may be able to qualify for new auto insurance discounts. Some insurers even offer discounts for brand new vehicles.

There's always the option of canceling your policy and purchasing a new one from a new auto insurance company, but it might be easier – and faster – to add your new vehicle to your existing policy.