Digital insurance company Lemonade is launching a product for users of Tesla’s advanced driver assistance system, known as Full Self-Driving (Supervised), which the insurer promises will cut per-mile rates by “approximately 50%.” It’s one of the first products geared toward pricing insurance based on how software systems handle driving, and a sign that companies may look to create new lines of business as partial autonomy and true self-driving start to proliferate. Lemonade said on Wednesday that it is ...