A subtle, substantial improvement over an everyday two-door G.
If you get behind the wheel of an Infiniti G37 IPL coupe expecting the sort of transformation that takes place between a BMW 335i and M3, you'll be severely disappointed. Infiniti is targeting the BMW 335is with its first IPL offering and thus keeping the price premium for the IPL badge pretty minimal. It's a good thing that the price increase is minimal because the performance increase is minimal, too. I don't think I would have guessed I was driving an IPL instead of a regular G37 coupe if I didn't know before I got behind the wheel. Perhaps a few laps on a road course would help demonstrate the IPL package's 18 extra hp and 6 additional lb-ft of torque, but the difference is negligible on a commute.
Photo Gallery: 2011 Infiniti G37 Coupe IPL - Editors' Notebook - Automobile Magazine