39 MPG combined is respectable for the 2017 Hyundai Sonata Plug-in Hybrid, a family sedan designed to offer significant electric-only range and reduced fuel consumption for the daily commute. This isn’t a sporty, driver-focused machine; instead, it caters to pragmatic individuals and families prioritizing efficiency and lower fuel costs without sacrificing the space and comfort of a traditional mid-size car.

City and highway performance

The EPA’s split of 38 MPG in the city and 40 MPG on the highway reflects the Sonata Plug-in Hybrid’s strengths. Its electric motor provides a noticeable boost in urban environments, optimizing fuel economy during stop-and-go driving. While the highway rating is slightly higher, the difference is minimal, suggesting the electric powertrain is effectively integrated at higher speeds to supplement the 2.0L four-cylinder engine.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2017 Hyundai Sonata Plug-in Hybrid at $1,100. This calculation assumes 15,000 miles of driving per year, using a national average fuel price. Whether you achieve that figure depends heavily on your driving habits and how frequently you use the car’s electric range. Short trips that stay within the electric range will drastically reduce fuel consumption and, therefore, annual fuel costs.

Real-world expectations

While the EPA numbers provide a standardized benchmark, real-world MPG can vary substantially. Someone with a short commute and consistent access to charging could realistically see fuel economy far exceeding 39 MPG, potentially even approaching triple digits if they primarily operate in electric mode. Conversely, a driver who frequently undertakes long highway journeys without charging opportunities will likely experience fuel economy closer to that of a conventional hybrid. It’s all about aligning your driving patterns with the car’s plug-in capabilities to reap the full benefits. The dedicated owner makes an effort to plug this car in as often as possible.

How it compares

Compared to its rivals, the 2017 Hyundai Sonata Plug-in Hybrid is competitive. The Ford Fusion Energi, for example, achieves a slightly lower 38 MPG combined. Other plug-in hybrid competitors like the Chevrolet Volt (no longer in production) offered good electric range, which can translate to even better fuel economy for drivers with short commutes. Even non-plug-in hybrids like the Toyota Camry Hybrid LE, with its 52 MPG combined, demonstrate the breadth of options available to fuel-conscious buyers. Very few competitors offer the Sonata’s mid-size sedan format coupled with plug-in hybrid efficiency. Potential buyers should also explore all all Hyundai fuel economy data to see the range of efficient options being offered by the Korean automaker.

Tips to maximize efficiency

Prioritize charging whenever possible. The Sonata Plug-in Hybrid’s electric range is its greatest asset. Keeping the battery topped off will allow you to complete more trips on electric power alone, significantly reducing your reliance on gasoline. Make it a habit to plug in at home and take advantage of charging stations at work or public locations.

Use the car’s driving modes strategically. The Sonata Plug-in Hybrid typically offers multiple driving modes, such as “EV” (electric vehicle) and “Hybrid.” Select “EV” mode for short trips and city driving to maximize electric-only operation. “Hybrid” mode will blend electric and gasoline power for optimal efficiency across a wider range of driving conditions.

Practice smooth and gentle acceleration. Aggressive driving habits deplete the battery’s charge quickly and force the gasoline engine to work harder. By accelerating and braking smoothly, you can conserve energy and extend your electric range, making this car more like a conventional SONATA MPG across all years on the open road.

Monitor your tire pressure regularly. Underinflated tires increase rolling resistance, which reduces fuel efficiency. Maintaining the recommended tire pressure will improve mileage and tire lifespan.

Reduce unnecessary weight. Extra cargo in the trunk adds weight to the vehicle, which forces the engine and motor to work harder. Remove any items that you don’t need to carry regularly to improve fuel economy.