* Engine: This is the biggest difference. The Cobalt LT typically had a 2.2L Ecotec four-cylinder engine, offering decent fuel economy but modest power. The Cobalt SS boasted a much more powerful turbocharged 2.0L Ecotec engine, delivering substantially more horsepower and torque, making it significantly quicker. Some LTs also offered a 2.4L engine, but it still paled in comparison to the SS's turbocharged unit.
* Transmission: The LT offered manual and automatic transmission options, usually 5-speeds. The SS typically came with a 5-speed manual transmission, known for its sporty feel, although some later models offered an optional 5-speed automatic.
* Suspension and Handling: The SS had a significantly upgraded suspension system tuned for performance, including stiffer springs, shocks, and anti-roll bars. This resulted in better handling and a more engaging driving experience compared to the softer ride of the LT. Brakes were also upgraded on the SS for improved stopping power.
* Exterior Styling: While subtle, the SS featured sportier exterior styling cues. This included unique front and rear fascias, side skirts, a rear spoiler, and larger wheels and tires.
* Interior Features: While both trims offered basic amenities, the SS often included sportier interior features like performance seats with better bolstering, a sport steering wheel, and possibly unique gauges.
* Performance: The SS was clearly the performance-oriented model, offering significantly better acceleration, handling, and braking. The LT was geared towards fuel efficiency and everyday driving.
In short, the Cobalt SS was a sporty, performance-focused car, while the Cobalt LT was a more basic, economical compact car. They shared the same basic platform, but their engineering and features were dramatically different.