found in a junkyard, and restored by Supercar Specialities, to as-participated condition at the 1962 Performance and Economy Trials at Daytona, this Super Duty Catalina is mighty unusual... both in history, rescue, and build

The Pure Oil Performance Trials of 1962 were held at Daytona International Speedway. Pontiac sent this 1962 Pontiac Catalina Super Duty to compete. The Super Duty Pontiac did very well, scoring the highest percentage of potential points for all classes and events.

The Super Duty Catalina was equipped with special aluminum front brake drums and a 4.30 Traction Lock axle, 11:1 compression ratio engine with twin 625-cfm carbs

https://www.hotrod.com/articles/10th-anniversary-muscle-car-corvette-nationals-greatest-muscle-car-show-planet/#041-2018-mcacn-sidebar-strohschein-1962-pontiac-catalina-super-duty-as-found

If the Pure Oil Performance Trials of 1962 sound vaguely familiar, but not quite right, it might be due to my having posted about the Mobil Economy Run that was on the West Coast. I haven't yet posted about the Pure Oil contests.

Oil companies–most notably Mobil, with its famed Economy Runs–often conducted independent testing, with the idea that participating manufacturers could boast about a victory in their ads, but these tests were often limited to a particular aspect of a car’s performance. In contrast, the Pure Oil trials tested three separate real-world attributes: gas mileage on a single measured gallon of Pure Firebird gasoline was one part, but so were braking distances from 65 MPH after a series of progressive stops to heat up the drums, and passing power from a 25 MPH roll up to 70.

A car that could do everything well was surely of more use in the daily slog of life than a pure feather-foot mileage test, no? Beyond corporate boasting in ads and at the dealership level, magazines from Motor Trend and Popular Science to the lesser-known, more targeted Modern Rod and USAS Autosports magazines covered the event–millions of readers would know of a good result. Even Chris Economaki’s National Speed Sport News got in on reporting the trials.

Rather than deal with the variables of real-world testing, Pure Oil leveled the playing field by doing their testing at Daytona International Speedway; because Pure Oil was the official gasoline of NASCAR

https://www.hemmings.com/blog/article/pure-1964-pontiac-gto/