I've seen the 1991 video posted but here's one of the same car in 1994. The video shows the engine bay and it has a superduty valve cover so based on the sound and speed of this car I'm guessing it was SD4 powered.
It drifts around the corners at an impressive speed. There are 4 parts of the stage shown... nice scenery too!
Watch "Canada Day Rally Sprint 1994 - Fortress Mountain, AB July 1, 1994" on YouTube
Canada Day Rally Sprint 1994 - Fortress Mountain, AB July 1, 1994: http://youtu.be/iKLHUci7bpo
[This message has been edited by Luke (edited 01-25-2015).]