I don't model Amtrak as such, but I do have some Amtrak equipment.
I have three Amtrak locomotives:-
(1) Athearn GEC Genises AMD 103 P42 diesel electric - Amtrak interciy
(2) Athearn EMD F59PHI diesel electric - Amtrak Northwest - commuter service
(3) Bachmann EMD F40PH-2 diesel electric - Intercity & commuter service - to be replaced with a Kato unit
My passenger cars are as follows:-
Intercity cars,
1 x Walthers Material handling car
! x Concor Superliner lounge car
1 x Concor Superliner dining car
1 x Concor Superliner sleeping car
2 x Concor Superliner coach cars
Commuter cars,
1 x Walthers Pullman Standard Bilevel Cab Control car
2 x Walthers Pullman Standard Bilevel coach cars
I also have a West Coast Express commuter train, consisting of:-
1 x Athearn EMD F59PHI diesel electric
1 x Athearn Bombadier Bilevel Cab Control car
2 x Athearn Bombadier Bilevel coach cars
Cheers, Simon