Finding An Affordable Vehcile Warranty

My husband and I bought an SUV about three years ago and figured we would trade it in once it was paid off.  We just paid it off and the warranty will be expiring next month and we have decided we want to keep it for at least a few more years.  We both agree that we would like to have a vehicle warranty in place just in case something really major breaks down.  I have started searching but haven’t found anything that I think is affordable.  I will have to talk this over with my husband before making any kind of decisions.