Out with the old S-Series, in with the new Ion. It's been 12 years since GM's Saturn division first appeared on the automotive scene in an attempt to compete more effectively with Japanese imports. Unlike Japanese manufacturers who change a car's design pretty much every four years like clockwork, the basic Saturn sedan, coupe and station wagon model, known as the S-Series, remained essentially unchanged. Until now. It didn't seem to matter terribly as people have chosen Saturns as much for the hassle-free buying experience as the car's actual character and performance. In fact, Saturn has been the only non-luxury make to ever top the J. D. Power and Associates Sales Satisfaction Index and was often ranked with such illustrious makes as Lexus and Infiniti. For 2003, there's an all-new sedan and coupe. This time, Saturn has given its entry models a name: Ion. The Ion replaces the S-series and sports all-new styling. It's built on an entirely new and bigger platform and it's powered by a new engine. It still has an unmistakable Saturn look, however.