U.S. drivers face patchwork of speed limits across the nation . The National Highway Traffic Safety Administration has proposed a nationwide standard for cars that would require all new vehicles to have at least one electronic stability control system by 2020. Advocates of low speed limits wo n't find much to like about Texas . Some researchers skeptical of link between accidents , high speeds .
U.S. drivers face patchwork of speed limits across the nation . The National Highway Traffic Safety Administration has proposed a nationwide standard for cars that would require all new vehicles to have at least one electronic stability control system by 2020. Some researchers skeptical of link between accidents , high speeds .