 Not available in every state subject to terms and conditions. Rating factors and savings vary, and in some states your rate could increase with high-risk driving. Allstate Fire and Casualty Insurance Company and affiliates, Northbrook, Illinois. This is a special alert to all Americans who own a vehicle with less than 200,000 miles with an auto warranty about to expire or with no warranty coverage at all. Due to a decline in the economy, CarShield is announcing a low-cost month-to-month vehicle protection plan that is now available to the public to save any driver out-of-pocket expenses on future auto repairs.