Just Posted: RigWheels RigMount X4 Magnetic Camera Platform Review.
Several years ago, I [Sean] attached my DSLR to a single high-power suction cup mount and photographed myself driving my 2004 Ford Mustang GT. It was winter, and I neglected to take into consideration how the cold weather would affect the suction cup's holding strength. Once I parked the car to remove the mount, the suction cup fell over in my hand. It had apparently lost suction at the precise moment my car had stopped moving.
I never attempted the single suction cup method of attching my DSLR to an automobile again.
For years I have been searching for a better alternative for mounting a DSLR to a moving vehicle, and I the RigWheels RigMount X4 Magnetic Camera Platform is the best solution I've found. With four magents capable of holding 50 lbs (22.7 kg) apiece anchoring the RigMount X4 in place, my mind is at ease while creating images like the example shown above.
B&H has the RigWheels RigMount X4 Magnetic Camera Platform in stock with free expedited shipping.