Originally , the ground clearance was only 2 inches but he was forced to run them with 4 - inch clearance .
According to Thompson he had originally fitted the cars with ground effect bodies that were not permitted and had to be taken off .
Originally , the ground clearance was only 2 inches but Thompson was forced to run them with 4 - inch clearance .
According to Thompson he had originally fitted the cars with ground effect bodies that were not permitted and had to be taken off .