Environmental protection, energy saving, and safety are currently the three major topics of interest in the field of automobile technology. To ensure sustainable development, large automobile manufacturers are committed to environmental policies formulated by governments as well as to international conventions. Price–performance ratios and eco-friendly vehicles with low, emissions, noise, and fuel consumption are factors attracting consumers. This study employed data envelopment analysis to investigate the vehicle efficiency of auto by collecting 2016 data from Consumer Report. The research results are as follows: (1) Cars exhibited the best performance in terms of price, costs, and mileage; luxury cars had the most favorable road test performance; sports utility vehicles (SUVs) scored highest regarding predicted reliability; and sports cars scored relatively higher in owner satisfaction. (2) Metafrontier efficiency was its highest for cars, which could be due to the highest prevalence of this auto type; hence, the technical applications were well-developed, the corresponding efficiency was relatively high, and the fuel consumption was relatively low. (3) Cars had the best performance in terms of miles-per-gallon (MPG). Not only were SUVs found to be expensive, their MPG performance was also the worst, indicating that this auto type requires further improvements regarding functional performance and environmental efficacy. The management implications of this study are as follows. Governments should formulate more stringent laws related to environmental protection, energy saving, and safety, and automobile manufacturers should comply with such regulations and enhance the quality of low-end auto models. Additionally, the application of smart and green technology in various auto types should be accelerated and conform to global trends. The conclusions can provide manufacturers with direction regarding their future product designs, methods to mitigate technology gaps, and benchmark strategies for improving inefficient brands.