A/FX is a class in drag racing. Drag racing is divided into different categories or classes, depending on many factors, among which are what modifications have been done to the oiginal vehicle (including, but not limited to) - body (original sheet metal or fiberglass replacement - part or whole), modifications to wheelwells to accomodate larger tires, etc., etc.; chassis; driveline (engine/transmission/differential); weight; & many other factors. The "A" was a class or division within the FX (Factory EXperimental) class, thus A/FX was the "A" section of the Factory Experimental class. Funny cars originally were classified as 'FX' cars.
FROM Wikipedia:
Subject ID: 11107
MoreA/FX is a class in drag racing. Drag racing is divided into different categories or classes, depending on many factors, among which are what modifications have been done to the oiginal vehicle (including, but not limited to) - body (original sheet metal or fiberglass replacement - part or whole), modifications to wheelwells to accomodate larger tires, etc., etc.; chassis; driveline (engine/transmission/differential); weight; & many other factors. The "A" was a class or division within the FX (Factory EXperimental) class, thus A/FX was the "A" section of the Factory Experimental class. Funny cars originally were classified as 'FX' cars.
FROM Wikipedia:
Subject ID: 11107
Subject ID: 11107