Whereas the normal 2011 Hyundai Sonata appears to have a relaxed smile, the Sonata Hybrid will greet the world with a look of surprise in New York on March 31.

This updated fascia design is apparent in the teaser shot Hyundai released today ahead of the New York show. No new information was released. We already know the car will use lithium-polymer batteries, and undoubtedly those will power a front-drive electric motor joining forces with a direct-injected four-cylinder engine.

The Sonata Hybrid goes on understanding later in 2010.

IL News: 2011 Hyundai Sonata Hybrid Teased Ahead of 2010 New York Auto Show