250 to the marker in a CRJ?? I don't ever remember going that fast at the marker and slowing down in time when I was flying them. Then again, maybe I suck.

The Q200 can do about 230 (240 in a descent (clacker at about 242)) when being vectored, but in EWR, you'll be assigned 210 or 180 or something like that way out anyway so it is never a problem. Most of the time, we're being told to slow down, not speed up. Our ref speeds are roughly 90-112kts, but it'll do 140ish all the way down if we need it to, no problem.