The Mexican government requires that tourists get auto liability insurance from a Mexico-based insurance company. Although your USAA auto policy may provide limited coverage for any loss or damage that occurs within a certain distance from the U.S.-Mexico border (check your policy for details), it doesn't provide the insurance legally required for travel in Mexico.
Texas is a big state and all Texas drivers know that—especially when they get in the car to drive on some of the three-quarters of a million miles of road in the state, the most in the country and 70% more than the number-two state California. This means some long drives between cities, towns and sometimes even neighboring homes, which is why it's important for Texas residents to make sure that both you and your car are protected.
For serious accidents, you want enough insurance to cover a judgment against you in a lawsuit without jeopardizing your personal assets. Therefore, it's a good idea to have the same level of bodily injury coverage for all your cars. You may also want to consider an umbrella policy which provides additional coverage for more serious accidents and lawsuits.
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