Wait, looking further at the G6 website... there's no manual transmission available with ANY engine? Not even the 4-cylinder? And why are there 3 V6 options... one of which is only available on the convertible (3.9L)? How can GM rationalize 3 V6 choices but no manual choices? How off-target is Pontiac with this car?!? This should be challenging Altimas and Mazda6s for the performance sedan buyers dollars. How can it do that with 4-speed automatics?!? Sheesh!
Okay, looked even further:
The 3.5L SFI has 219 hp / 163 torque
The 3.9L has 222 hp / 166 torque.
The make the 3.9L an optional engine ONLY on a low-volume variant (the convertible)! How does it make ANY sense to offer this engine?!? What is the point? How can GM get some things so damn wrong? How bungled is the poor G6? I thought that simplifying available vehicle configurations lowered the cost of manufacturing... why does GM throw a random engine with almost the same output as another V6 in the G6 hardtop convertible?!? Grrrrrr! At least the 3.5L VVT has significantly more power (252 hp / 188 torque). The 3.9 is just silly, and shows that, once again, GM doesn't have a clue what to do with Pontiac.
At least they got the G5 right with the 2.0L turbo 260 hp GXP versi... oh, wait, nevermind.
Horsepower (hp / kW @ rpm): 164 / 122
@ 6400 219 / 163
@ 5900
217 / 162
@ 5800 (convertible) 252 / 188
@ 6300 222 / 166
@ 5600