Thanks for the input, Fred. I can't think of much else that they might be doing so you may well be right.
The Howmet turbine car met an early demise in the Daytona 24-hour after making contact with the wall
while making the turn from the infield back onto the oval. There was a lot of interest in the turbine cars
in the years of 1967 and 1968 due to the STP turbine cars at Indy and Parnelli Jones' near victory in '67
after dominating the majority of the race.