The Hyundai Sonata engine powertrain is a prime example of modern engineering when you look under the hood. Hyundai's Smartstream technology adjusts the fuel and air mixture to lower pollutants and increase combustion efficiency. While turbocharged versions provide more power for those seeking greater excitement, the base 2.5L naturally aspirated engine offers good performance and exceptional efficiency. Together with a lightweight chassis and cutting-edge transmission options, the Sonata's engine is designed for long-term dependability and seamless, effortless performance in any driving situation.