Poor person's flow-viz. Take your pick.

Water:


Dirt (this one is really good):


Snow (not through the engine bay, but still interesting):


This year's splitter is helping a lot to keep water away from the inlet area in a watersplash. But as we saw in Monte, Sweden and other gravel rallies, it's also very good at scooping up dirt and snow. I'm looking forward to Spain. If we have gravel conditions anything like last year, it would be very interesting (and demanding).