Detailed item info Model OverviewFor 2009. both Solstice coupe and convertibles come in two trims. The base convertible and coupe feature a 5-speed manual transmission standard and a 2. 4L DOHC aluminum 4-cylinder engine that produces 173 horsepower and 167 lb of torque. Four-wheel disc brakes. a limited-slip rear differential. ABS. stability control. 18-inch aluminum wheels. traction control. a CD player with an auxiliary input jack and XM satellite radio are all standard. Both base trims have a starting price of just about $25. 00. The performance-oriented GXP trades the 2. 4L Ecotec engine for a turbocharged 2. 0L I4. boosting horsepower by nearly 50% to 260 and increasing torque to 260 lb. Along with the fiercer engine. the GXP receives a sportier 4-wheel independent suspension. dual exhaust outlets. and fog lamps. Convenience features such as cruise control. power mirrors and windows. remote keyless entry and steering-wheel-mounted audio controls are included as well. Both GXP models are price at about $30. 00. A broad array of options. including a 5-speed automatic transmission. leather seats. air conditioning. a 6-disc CD changer. and larger speakers help soften the Solstice's purposeful roadster experience. Metallic pedals and a rear spoiler are available on both trims. while the Club Sport Package adds ABS brakes. a limited-slip rear differential and a stiffer suspension to the base model. Both models come with a 3-year/36. 00-mile basic warranty. a 5-year/100. 00 mile drivetrain warranty. a 6-year/ 100. 00 mile corrosion warranty. and a 5-year/ 100. 00 mile roadside assistance warranty. The Base Trims achieve a fuel economy of 19 mpg city and 25 mpg highway. while the GXP trims boast 19 mpg city and 28 mpg highway.