In addition to the prone drivers position and periscope vision, the front drive car was a 'rear steer' design using the two trailing rear wheels similar to that system later used by Andy Green and the sound barrier jet car.
On it's first runs Phil noted the steering was 'extremely quick' and difficult to control. When it finally made a long course run it flipped upside down between the two and three mile.
The car was repaired and made one more pass but without suspension, the ride was determined to be too rigid to control and withdrawn from competition. The car then disapeared from sight to never be seen again.