High Mileage Hybrids: 2003 Honda Civic Hybrid Engine Review

This diminutive engine is full of technology, including dual spark plugs per cylinder fired separately by computer. Depending on conditions, an individual cylinder's plugs can be ignited sequentially or simultaneously. The result is more effective combustion and improved emissions. Honda's Variable Valve Timing and Lift Electronic Control closes up to three out of four cylinders' valves to reduce the engine's pumping action, thus saving fuel usage.

To the casual observer, the Civic Hybrid looks and operates much like a standard Civic sedan. The only dead giveaway is the electronic instrument display, which includes charge/assist meters.

Size and weight reduction is a key component of improved fuel economy, and the IMA system helps by being small and light enough to fit between the engine and continuously variable transmission. It operates in a seamless fashion, boosting power to the front tires as needed. That's the beauty of this car. On the road, the CVT-equipped Civic Hybrid feels much like a conventional 1.7L Civic, complete with a well-designed, ergonomically friendly interior and capable road manners. Yet the Hybrid has a strange influence on some people, as evidenced by Road Test Editor Chris Walton: "This car has a mysterious effect on my otherwise pedal-to-the-metal driving style. I find myself trying to (a) improve my mpg, (b) "earn" more battery-bars back by charging off-throttle, (c) be generally gentle and kind on the car--what's happening to me?!"