I felt compelled to put this picture in and FINALLY I did it correctly and it showed up!
This was the SUPER fast ride at King's Dominion... read more below!

HyperSonic XLC is the only compressed-air launch coaster in the United States. Unique acceleration, zero gravity airtime and free-fall sensations combine to make HyperSonic an incredible coaster experience. Pneumatic tires and specially designed shock absorbers provide an unbelievably smooth ride that must be experienced.
The ride starts on the left of this picture!