PARIS — An obscenely powerful hybrid sports car, a family-friendly SUV with enough space for seven adults, and an electric vehicle that promises to keep going for over 300 miles on a single charge — those are some of the notable vehicles shining on the display stands under bright overhead lights at the Paris auto show. Executives at this year’s show are talking about how the industry can adapt to — or, better yet, profit from — disruptive change such as electric engines, networked vehicles, car sharing, and autonomous driving.