You can get some unpredictable and interesting effects with a camera resting on the dashboard. I cropped out the windshield wipers. I think next time I'll use a slower shutter speed to try and blur everything but the main subject.
[caption id="attachment_31" align="alignleft" width="360" caption="2011, car, January, Miami > South Florida, Nighttime, Road, www.carlosfernandezphotography.com"]