In recent years, the global automotive sector has undergone transformation at an unprecedented pace, driven by environmental concerns, rapid technological advancements, government incentives, and evolving consumer expectations. The rapid uptake of electric motors as the main propulsion system in New Energy Vehicles (NEVs) has been a key factor in this change. This study examines the technological development of electric motors in four different vehicle segments: passenger cars, heavy-duty commercial vehicles, three-wheelers, and two-wheelers. It identifies the leading electric motor technologies utilized in each of these segments, along with their prevalence across key globally regulated markets. The study offers a thorough analysis of current e-motor technologies and their market distribution by referencing historical data and existing scholarly literature. A regional analysis is conducted to examine variations in manufacturer preferences and deployment strategies, supported by visual representations of application-specific performance requirements, manufacturing economics, regulatory constraints, and market maturity. The study also investigates evolving trends in motor technology adoption, considering the distinct characteristics of each vehicle segment and associated regional dynamics. The core analysis focuses on Direct Current Motors (DCMs), Induction Motors (IMs), and various families of Permanent Magnet Motors (PMMs), evaluating their architectural designs, operational parameters, and integration within specific electric vehicle powertrain configurations. Furthermore, the paper identifies emerging markets and regions poised to lead in the adoption of e-motor technologies, especially as global supply chains become more integrated and resilient. The insights presented offer value to researchers and policymakers seeking to better understand the factors influencing electric motor adoption, while also serving as a contemporary reference for industry stakeholders navigating the ongoing transition toward electric mobility.