Transportation is the second largest source of carbon emissions today, with more than 80% of the carbon emitted from automobile operations. Hence, reducing the fuel consumption per unit mileage while vigorously developing new energy vehicles has become an inevitable choice for carbon emission reduction. So, this paper applies the differential game approach to investigate the production trade-offs of fuel and new energy vehicles, fuel consumption reduction, and digital technology investment strategies in an automotive supply chain under a dynamic framework. In addition, it further analyzes whet...