I varry shutter speeds a lot, anything from 1/40 to 1/250 ish, depends on situation, car speed, corner or straight, focal length, and how hung over I may be at the time...
Id love to lower it more in some shots but shooting at 200mm with a non is lens fully hand held makes it hard.
Normaly I would look for a place that doesnt have a bussy backgound but didnt have media access for Targa West so choice of spots was limited