I’ve yet to find out the source of these Lexus IS-F videos, or even to really grasp their purpose, but a Youtube user has posted up a set of the long and quiet clips, which almost simulates what the car would be like to drive:
City Driving
Mountain Driving
Exterior/Interior Overview
Driving View
I point them out more for curiosity’s sake, watching them in full is almost tedious. I kept waiting for something to happen.