The 3400 V6 engine that's optional in SE editions delivers 170 horsepower at 5200 rpm and 195 lfb.-ft. These enhancements boost output to 175 horsepower at 4800 rpm and 205 lb-ft. Grand Am's 4T45-E automatic transaxle, standard with the 3400 V6, is engineered for operation with an Enhanced Traction System that automatically limits front wheel spin in slippery conditions. Manufactured by the renowned transmission specialist Getrag, the five-speed transmission, that's standard on Grand Am SE models, is loaded with special features. A composite shifter base helps isolate powertrain noise and vibration from the Grand Am's interior.
All gears are ground and honed for smooth, quiet operation.
Closely spaced ratios help the engine to provide brisk, quick acceleration, while an overdrive fifth gear delivers quiet and efficient highway cruising. The Grand Am's 25 Hz body rigidity sets a standard for the compact class. It's on par with world-class luxury vehicles from Mercedes, BMW and Cadillac. A four-wheel independent suspension builds on this foundation. Aluminum suspension knuckles reduce unsprung weight for responsive ride and handling.