Here's a typical Budd consist running on the Ocean during the winter,
Ocean #14 November 16, 2011
VIA 6438: F40PH3 (Ocean #14)
VIA 6445: F40PH3
VIA 8609: baggage
VIA 8127: coach
VIA 8112: coach
VIA 8501: Skyline Dome
VIA 8401: Acadian - Diner
VIA 8208: Chateau Dollier
VIA 8205: Chateau Closse
VIA 8211: Chateau Lasalle
VIA 8214: Chateau Laval
Note: there is no "Park Car" Dome Observation running in the off-season but there is a "Skyline Dome" at mid-train shared by coach and sleeper passengers.
Only one of the three Renaissance consists has been replaced by a Budd. (VIA is upgrading the Renaissance consists to Barrier Free Standards (this is ADA to Americans)
http://www.viarail.c...ccessible-coach
The best way to tell if a Budd consist is operating is to make a sample booking on VIA's web page. If you have a range of sleeper accommodations such as Upper, Lower and Cabins for 1,2 or 3.….it will be a Budd. But if only Cabins for 2 and Cabins for 2 with shower are available…..it will be Renaissance.
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I ride the Ocean often and personally will schedule my trip to avoid riding in a Budd. equipped train.....I just find the Renns provide a much smoother and more comfortable ride.