With fuel prices constantly fluctuating, choosing a car with excellent fuel efficiency is a smart choice for drivers looking to save on costs while reducing their carbon footprint. Hybrid cars and fuel-efficient cars are becoming more popular due to their extended range and lower emissions. Here are the 10 best fuel-efficient cars available in Singapore in 2025. 1. Toyota Prius Hybrid - A Leader in Hybrid Cars KM/L: 24.4 km/l (City) / 22.7 km/l (Highway) Why it’s great: The Toyota Prius Hybrid remains a pioneer in hybrid car technology, offering a perfect balance of efficiency and affordability. 2. Hyundai Ioniq 6...