GM must be Ion something.After moving into larger cars and SUVs, Saturn is refocusing on its bread-and-butter small cars. The Ion lineup replaces Saturn's S-series, the cheery runabouts that established the brand in the early 1990s. Sedan and coupe (which features dual rear-access doors) are based on GM's new Delta platform. While you'd be hard-pressed to call them attractive, the Ions do recapture the shiny, happy spirit of the original Saturns. Buyers can customize their Ions with "personal accent" kits, which extend to leopard-print roof rails and center-console finishes. There is also a central gauge cluster, hence a smaller steering wheel, which allows drivers to steer while wearing handcuffs. A 137-horsepower, 2.2-liter four is standard, and a continuously variable transmission is available in addition to manual and automatic five-speeds.