Connected cars, also known as IoT-enabled vehicles, represent the future of smart mobility by integrating internet connectivity, cloud computing, and advanced telematics to enhance the driving experience. These vehicles connect through 4G, 5G, Wi-Fi, or Bluetooth networks, enabling real-time communication with infrastructure, other vehicles, and centralized servers. Key features include remote diagnostics, predictive maintenance, over-the-air software updates, and emergency crash alerts, all of which increase safety and reduce downtime. Connected cars also provide advanced infotainment services such as streaming, app integration, and voice assistants, making rides more enjoyable and personalized. Telematics features like GPS tracking, fleet monitoring, and driving behavior analysis make them essential for both personal and commercial use. Security remains a major focus, with encrypted communication and anti-theft measures protecting sensitive vehicle data. Moreover, by providing optimized navigation and real-time traffic updates, connected cars help reduce fuel consumption, emissions, and travel times. Remote access via mobile apps allows users to start, lock/unlock, and pre-condition vehicles with ease. Governments across the world are promoting connected mobility as part of smart city initiatives, and the technology is gradually evolving toward full autonomy. With IoT integration, connected cars not only improve safety and convenience but also pave the way for sustainable, intelligent transportation systems.