Hey, all I am guilty of is trying to use some common sense.
Grass, the green stuff in both of the orginal posts, does a nice job of holding the ground together. No dust trail left by passing vehicles.
You all are commenting on things like "on dirt roads" or "in dry conditions" or "in the desert". My argument? Your absolutely CORRECT......but thats not what you see in both screenshots posted by Mitsu.
And although it has not rained in the AH main arena in over a year, the grass has not died yet leading me to conclude...its not dry conditions.
So, having huge dustclouds/smoking engines doesn't seem right to me.
In a brown desert terrain...go for it. Huge dust clouds. Thats totally acceptable to me.
Hans.