1973 ADF Formula Ford – 1973 SCCA National Champion

Ex-works/Bob Earl car



This is David Bruns’ factory ADF car, chassis #1. It won its maiden race, the 1973 SCCA National Championship at Road Atlanta with Bob Earl piloting the car.  This highly advanced car with inboard front brakes, inboard front suspension, and a chrome molly tig welded chassis would be the forerunner of Bruns’ next all conquering Formula Ford, the Swift DB1.

The ADF is super rare and was highly competitive in period. It will certainly be highly competitive in vintage Formula Ford and Club Ford as well. Here’s why. The ADFs  won the SCCA National Championship four times; 1973 with Bob Earl, 1975 with Tom Wiechmann, 1980 with Bob Lobenberg, and again in 1982 with Bob Lobenberg. SCCA Formula Ford National Championships That makes this car the one to have to win overall in vintage Formula Ford racing in the U.S. and abroad.

The car comes with logbooks back to 1985, and ownership history back to day one. The ADF was invited to, and raced at, the 2009 Formula Ford Festival.

The ADF has done a handful of races since it most recent restoration was completed in 2013.


A frame up restoration was completed in 2013 by Formula Ford expert Neil Porter.  At the time the car received the following:

Frame crack checked

New powder paint on the frame

All new brake discs, lines and master cylinders.

Calipers were replated and rebuilt.

All new bearings in uprights and suspension. Mk.2 front uprights installed.

New steel bodied double adjustable Koni shocks. (Note that the shocks now appear to be aluminum Koni double adjustables.)

Rebuilt Hewland Mk.9 transaxle with new ring & pinion.

New front brake half shafts.

New fuel cell.

Loyning engine with one race weekend on it.

New paint, etc.

Spares include one set of unrestored original LeGrand wheels. The ADF currently rides on a set of Panasports.

Since restoration the ADF has had several practice days and a few races. In 2021 it received a new Fuel Safe FIA fuel cell. The car will need new seat belts. A new fire bottle would be a good idea too.

This ADF National Championship winning car is a significant piece of Formula Ford history. It was way ahead of its time, and has stood the test of time, winning multiple SCCA National Championships over a 10 year period. The design and workmanship of the ADF was way beyond any of the other Formula Fords built anywhere else in the world. So was its price, which was close to triple that of the other contemporary Formula Fords.

We think this ADF will go quickly once it is discovered by someone who knows and appreciates what it is.  The price is also amazing. For a good Formula Ford price, you can now own one of the most significant cars in Formula Ford history.  We suspect that once it is gone, it likely will not become available again for a very long time.

All vehicle descriptions are accurate to the best of our knowledge at the time of writing. Corrections, and supplemental information, are always welcome. Buyers are responsible for confirming vehicle histories, condition, and authenticity to their own satisfaction prior to purchase. Motorsports Market is not the owner of the vehicle and assumes no liability for errors and omissions.

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