But it's the mid-grade 3.9-liter V6 propelling this week's LTZ tester. Interestingly the same engine sat beneath the hood of the
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| I am quite convinced that GM could further refine the operation of the Impala's mid-grade 3.9-liter engine. (Photo: Rob Rothwell, American Auto Press) |
Pontiac G6 GTP Coupe I recently put through the rigors of a road test; and what's interesting is the difference in operational refinement between the two applications. Unexpectedly, Pontiac's version was quieter and less obtrusive than Chevy's - surprising given the sportier character of the G6 GTP over that of the Impala. Nonetheless, I am quite convinced that GM could further refine the operation of the same engine in the more mundane offering. When it's not being pushed, the Impala is a very quiet vehicle to ride in thanks in part to GM's Quiet Steel technology. But even under
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| More power is simply not needed unless out-hustling a Hemi-powered 300C is the goal. (Photo: Rob Rothwell, American Auto Press) |
light acceleration, there is in my view excessive engine groan.
Auditory intrusions aside, the 3.9-liter mill is a strong performer. It delivers plenty of pull at any speed,making it a capable sprinter off-the-line and a strong runner in thepassing lane. More power is simply not needed unless out-hustling a Hemi-powered 300C is the goal. Besides, front-wheel drive vehicles do not inherently handle massive bursts of torque particularly well. To Chevy's credit though, torque steer is impressively controlled in the Impala, with all-speed traction control supplied as standard equipment with the big V6.
