The boxy Kia Soul is still funky-looking and still has dancing hamsters in its award-winning television ads. But for 2012, the youthful Soul is restyled for a more high-tech look, has more powerful, yet more fuel-efficient engines, new six-speed transmissions and more features, including an infotainment system with voice recognition. Kia even offers 18-inch wheels now. This model year, the five-door Soul also adds Idle Stop and Go (ISG), which automatically turns off the engine when the car is at idle, such as at a stoplight, and then automatically restarts the engine when the driver’s pressure on the brake pedal lets up. The ISG, which is commonly found on gasoline-electric hybrid vehicles, helps conserve fuel. What’s not changed: The front-wheel drive Soul hatchback retains its industry-leading warranty coverage, which includes 10 years/100,000 miles for powertrain and five years/60,000 miles for limited, basic car coverage. And it still comes standard w...