New RS model debuts equipped with turbocharged engine and all-wheel drive, two items twin Geo Storm never received. RS turbo makes 160 horsepower and can be equipped with optional ABS. Also new is an aberration called Impulse XS hatchback. Warranty changes from 3 years/36,000 miles to 3 years/50,000 miles. Rust coverage is extended to 6 years/100,000 miles from 3 years/unlimited mileage. New powertrain warranty is good for 5 years/60,000 miles.