I'm getting 24-27 with AC with mixed driving and aggressive techniques (regularly heel-toe downshift, harder acceleration off the line). No mods yet (K&N CAI sitting in the box waiting to get installed).
Has anyone taken the roof rack off the '02 P5 and noted a difference with the reduced drag?
I got the Sony MEXBT3900U and have really enjoyed it, though if you don't have a phone that supports BT Audio it's probably not worth it.
If you decide to install the stereo yourself I found that it was really easy to pop off the trim piece around the air vents and stereo enclosure to make...