And where are u located? Even though it's got low miles, check for any signs of rust. I'm getting between 29-31 MPG for city driving. Some get lower...some get a little higher. HWY miles should be in the 32-35 zone.
Maybe too good to be true, almost everyone that has a P5 loves it and rarely gets rid of it.
Lots of big storms this past Spring. Flip back seats over, look under carpet for signs of past water or dirt. Same goes for under spare tire. CRfax only shows up only if a certain level of $$$ is spent to repair.
30 K and no issues would certainy be a find, but be careful.
Good luck