A third way to measure and evaluate smart car technology is to estimate its value and impact, such as how much it adds to the customer satisfaction, loyalty, and retention, how much it contributes to the business profitability, competitiveness, and innovation, and how much it influences the social welfare, equity, and responsibility. For example, you can measure the customer value of a smart car feature, such as a navigation system, by using indicators like willingness to pay, satisfaction scores, and retention rates, or the social impact of a smart car feature, such as a emission reduction system, by using indicators like carbon footprint, air quality, and health outcomes. You can use various models and frameworks, such as cost-benefit analysis, value proposition canvas, and impact assessment, to estimate value and impact.