RUN OF THE MILL

Tom chose a hearse to take us sightseeing. That is not a run of the mill vehicle. We are heading to a ghost town, for crying out loud.

Run of the mill = average, mediocre, common-place.

e.g.

Texans' Foster is no run-of-the-mill star.

http://www.chron.com/sports/justice/article/Justice-Texans-Foster-is-no-run-of-the-mill-star-2148357.php