Got both sets when they first came out, fortunately, they came out at the same time.
MTH PA's have 4 motors and smoke.
Four motors are needed to haul eleven 21" extruded aluminum passenger cars!
K-line made real nice cars. Lighted and interior details with people (I miss K-line).
If I remember correctly, there are about 4 different sets to make up the 11 car consist.
runby video:
https://www.youtube.com/watch?...amp;feature=youtu.be