An innovation research on the interplay between economic GDP growth, the rising market occupation rate of battery electric vehicles (BEVs) and plug-in hybrid electric vehicles (PHEVs), and their impact on scientists’ behavioral patterns and judgment accuracy in technological forecasting is presented. The study employs a dynamic panel data model to analyze cross-national innovation trends, revealing that increased EV market penetration correlates with heightened scientific engagement in sustainable technology development, thereby reshaping research priorities and decision-making frameworks under evolving economic conditions. The BEV &PHEV as a national strategic plan will affect the next generation GDP due to its related easy making criterion and atmosphere contamination problem, so that the innovation vehicle-use battery may become an eminent highlight for our scientists and experts to search more effective methods to decrease its cost and promote efficiency &stability and safe etc. problems. Hence, the BEV &PHEV as a main industrial pillar in 21 century modernization will widely be used at the different utilities like short-distance less than 200Km, medium-distance 200~500Km and long-distance more than 500Km with various loads according to its requirement. Therefore, the vehicle diversified market usefulness will provide more detailed aspects to design every consideration in terms of practical destination like in a DBA (Doctor of Business Administration) thesis of the Hitotsubashi University PhD. We should continue to further develop the vehicle quality and quantity with more diversified market demand that may be look for and find through many ways like customer and auto fix station, hence the main issue will be found like load size and distance and its car, SUV (sport-utility vehicle) & MPV (multi-purpose vehicle) with various power. Only by increasing multi-utility vehicles may we stand up the peak for looking for the national views like multilateral trade transaction.