Twenty-years is a long chunk of time to remain at the top. But since its birth in 1992, the Nissan Altima has lived comfortably at the top of the charts and in the driveways of consumers everywhere. As a practical five-passenger sedan, the model fulfills the daily needs of family life. As a pure-bred Nissan, it delivers only the most innovative features and power. Now, to honor the Altima and its twenty-year run, the automaker has put together a celebratory feature package.