The Pontiac Sunfire is an agile compact coupe that's enjoyable to drive. Changes improve the Sunfire for 2003. Revised front and rear styling freshens its appearance. GM's 2.2-liter Ecotec engine offers quieter operation, improved efficiency, and substantially more power than last year's base engine. Interior revisions improve comfort and convenience. Optional side airbags and the OnStar telematics system enhance safety. A retuned sports suspension offers quicker responses. In spite of updates for 2003, it lacks the refinement of some of the latest models from the competition. Its base price looks attractive, but options will likely be needed to add desirable safety and convenience features.