If we could agree on how we score our new cars it might provide TM a more consistent and focused feedback mechanism. Maybe scoring it more by comparison to competitors like the A6 and 5 series I'm interested to see the scores given to Model S from C&D, MT and Consumer Reports. As well as Edmunds TCO USNews seems to have a comprehensive system: How We Rank New Cars - U.S. News Rankings and Reviews How We Rank New Cars Our new car rankings are based on a consensus of America's top automotive experts, as well as safety and reliability data. The rankings do not rely on our own tests or U.S. News editors' preferences. We combine two types of information: published reviews from respected automotive critics and safety and reliability data from third-party sources. For each new car in the U.S. News rankings, our editors analyze credible reviews about the new car to come up with a score representing what professional critics says about it. The reviews are gathered from major newspapers, magazines and automotive websites. For each third-party review, we score the car on four different components: • Performance. The performance score represents the reviewer's written assessment of a car's handling, braking, acceleration, ride quality and other qualitative performance measures. • Interior. The interior score represents the reviewer's written assessment of the car's interior comfort, features, cargo space, styling and build quality. • Exterior. The exterior score represents the car's eye-catching appeal and perceived build quality. • Overall Recommendation. The recommendation score represents the overall tone and recommendation level the reviewer places on a car. In addition to the analysis of professional reviews, we add information of particular interest to new car shoppers, such as safety and reliability data, that isn't part of the critics' qualitative reviews. • Safety. The safety score is based on a compilation of scores from leading safety rating sources, including the National Highway Traffic Safety Administration and the Insurance Institute for Highway Safety. • Reliability. The reliability score contributing to the U.S. News rankings is the Predicted Reliability rating provided by J.D. Power and Associates. This score is based on the past three years of historical initial quality and dependability data from J.D. Power's automotive studies, specifically the Vehicle Dependability Study (VDS) and the Initial Quality Study (IQS). • Awards. Cars that win major automotive industry awards, such as the Motor Trend Car of the Year andNorth American Car of the Year, receive a bump in their Recommendation score to reflect the importance of these awards. We combine these scores in a formula that is based on what new car shoppers say matters to them most in a new vehicle. The result is an overall score for each new car, which allows us to make head-to-head comparisons of new vehicles, ranking them against each other. In some instances, the overall score is higher or lower than the component scores we display. This is because the Overall Recommendation from reviewers contributes to our calculation of the overall score, but is not currently displayed as a component score. Occasionally, a new car really is more (or less) than the sum of its parts.