I'm not a great source of information, but I can provide my own experience -
My road bike has a much larger saddle to bar length (horizontal) and a smaller saddle/drop than my track bike. I've been told by many to get a proper fit as I look cramped and uncomfortable, but it feels comfortable and my power output isn't compromised (no PM, but I am seeing results each week!).
Also, frame sizes - Road bike is a 54cm whilst the track bike is just shorter than 52cm.

So my frame sizes and fit a different between the disciplines, but fit is very personal and I know a couple of people who ride the same measurements as their road bikes on the track. (I may provide actual measurements later tonight with an edit, could show how dramatic my changes are.)