The MoPac Eaglette:
http://trainweb.org/screamingeagle/eaglette.html
Or the Delta Eagle, a short streamliner headed by #7100, an E6 with the rear engine removed to add a baggage compartment:
https://en.wikipedia.org/wiki/EMC_AA
The Frisco Firefly:
https://en.wikipedia.org/wiki/Firefly_(train)
NOTE: for some reason, the text editor keeps disconnecting "(train)" in the Firefly URL, which results in linking to an article about bugs. to get tot he article about the train, the entire URL needs to be typed in. *sigh* Ain't Komputurs SMART?