An attractively styled midsize sedan from Pontiac, the G6 replaced the long-running Grand Am. Fortunately, the G6 has much improved interior materials and build quality compared to the Grand Am. Engines choices include a 2.4L I-4 with 167-bhp, a 224-bhp 3.5L V-6, 240-bhp 3.9L V-6 (opt. GT), or 251 hp 3.6L. The 3.6L GTP model features a six-speed automatic. A 6-speed manual is optional on the GT. All other models are equipped with a 4-speed automatic.

The GTP model switches to a 3.6L V6 with variable valve timing. The engine is rated at 252 hp and 251 lb-ft of torque. A six-speed automatic is standard on the GTP model.