The Pontiac Sunfire was restyled in 2000 and changes since then have been minimal, especially on its exterior aspect. The current model looks dated. The most significant change for 2002 is underneath the Sunfire's hood. For 2002, the Sunfire offers GM's new 140 horsepower twincam 2.2-liter 4 cylinder Ecotec engine as the replacement of last year's 150 horsepower 2.4-liter. Although slightly less powerful than the latter, Ecotec is lighter and more fuel-efficient. The new engine was designed to offer quieter operation and improved efficiency.

It is optional on the SE and standard on the GT. All 2002 Sunfires come standard with air conditioning, anti-lock brakes, a tilt steering column (which the GT already has), an AM/FM/cassette audio system, and 14-inch all-season tires. Both the sedan and the coupe gained an electronic trunk release for the driver. The GT adds aerodynamic body trim, fog lights, a CD player, performance tires mounted on 16-inch alloy wheels, plus its more powerful engine and sportier suspension tuning. Another new option for 2002 is the Driver Convenience Package that includes cruise control, intermittent wipers, a trunk cargo net, assist handles, overhead storage unit and reading lamps. Also new for 2002 is an auxiliary power outlet for all versions.