The cars are absolutely spacious, maintaining that quality design of the 650 series coaches, but with newly implemented elements that will accommodate anyone with mobility issues.
On the top left is one of the features of the car which is a wheelchair lock down with a permanent table.
On the middle left is the newly designed accessible washroom with a ton of space and a power assisted door. The photo doesn't do this washroom justice because it is huge! On the other end of the coach is the regular, smaller washroom.
As you can see on the bottom left, the safety features and emergency exits are similar to all other 650 series coaches and are supplied in seat pockets at every seat. These same guides are also posted on the walls at each end of the car.
Today, both the 660 and the 661 are busily working the 421-622 Polar Bear Express with one of these cars always included in the consist.