This article reviews recent advancements in Multilevel Inverter (MLI) technology for Electric Vehicle (EV) applications, with a focus on topologies that reduce the number of isolated DC sources. MLIs are gaining traction in EV systems due to their high efficiency, lower device voltage stress, improved output waveform quality, and fault-tolerant nature. Unlike conventional two-level inverters, MLIs enable better performance with lower voltage stress on components. To address this, researchers are exploring simplified MLI configurations that minimize the number of DC sources while maintaining key performance benefits. These designs aim to reduce the switch count and improve overall system integration, making them more suitable for practical EV applications. The paper evaluates various topologies that support reduced-source configurations, highlighting their potential to enhance EV powertrains. Overall, the study emphasizes the growing relevance of efficient, compact, and cost-effective MLI solutions in advancing electric mobility. © 2027 selection and editorial matter, Natarajan Balasubramanian Muthu Selvan, Venkatraman Thiyagarajan and Cheng Siong Chin; individual chapters, the contributors.