City buses are designed for high-capacity passenger transport within urban areas, making them the backbone of public transit systems. Built with seating and ample standing space, they can carry anywhere between 40 to 100+ passengers depending on the model. Equipped with powerful engines ranging from diesel, CNG, hybrid, or fully electric powertrains, city buses are optimized for frequent stops and short-to-medium distance travel. Most modern city buses are low-floor designs, allowing easy entry and exit for all passengers, including the elderly and differently-abled individuals. Wide automatic doors, grab handles, and wheelchair accessibility features improve passenger convenience. Safety is ensured through ABS braking systems, CCTV cameras, panic buttons, and GPS tracking for real-time monitoring. Comfort features include air conditioning, digital route displays, and automated ticketing systems. Electric city buses are rapidly gaining popularity due to zero emissions, low noise, and reduced operating costs. Mileage typically ranges from 2–5 km/l for diesel buses to 120–200 km per charge for electric models. Durable, efficient, and passenger-friendly, city buses play an essential role in reducing traffic congestion and supporting sustainable urban mobility.