>rFactor/UserData/<username>/<username>.plr file
> edit value under "Graphics Options":Cockpit Vibration Mult1="1.00000"
> (make it a lower value).

Like 0.00000 (this what I use, makes for better videos.

A bit of history in this videos, an original Formula at the orginal
Toban GP track, dual view, in car over chase:

http://jeffareid.net/rfr/rfrf1tgp.wmv