For 1999, Hyundai strengthens their brand's commitment to supplying refined, high-value vehicles to the United States vehicle marketplace with a re-engineered flagship. A redesigned Sonata is the greatest change to the Hyundai line-up for 1999. Featuring rounded bodywork, and a new twin-cam V-6 engine, the 1999 Hyundai Sonata sedan also delivers added standard content such as side-impact airbags. For 1999, all Hyundai Tiburon sport coupes will be equipped with air conditioning and cruise control. The Hyundai Elantra sedan and wagon are defined by only a single trim level for 1999. The brand's 1999 vehicles are backed by a five-year or 60,000-mile bumper-to-bumper warranty under the Hyundai Advantage plan.