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Class Designations and Descriptions
Section I American Marque Cadillac
Class A1 Pre war up to 1942
Class A2 1945* thru 1966
Class A3 1967 thru 1976
Section II European Marque Ferrari
Class H1 Ferrari pre-1975
Class H2 Ferrari early model
Class H3 Ferrari late model
Class H4 Ferrari race car
Section III Imported Cars
Class B Sports Cars thru 1955
Class C Sports Cars 1956 thru 1987
Class D Sports Cars- Porsche-1956 thru 1987
Class E Passenger and Touring Cars 1956 thru 1987
Section IV Classics
Class I US Classic Open
Class J US Classic Closed
Class K European Classic Open and Closed
Class L Brass Era Cars 1900 thru 1917
Class S Auburn/Cord/Duesenberg
Section V American Manufacture
Class M Thru 1942
Class N 1945* thru 1955
Class O 1956 thru 1965
Class P 1966 thru 1987
Class R1 American Sports Cars 1953 thru 1962 (Corvettes)
Class R2 American Sports Cars 1963 thru 1978 (Corvettes)
Class R3 Muscle Cars 1965 thru 1973
Class R3 Cobras
Class R4 DeTomaso Panteras and Mangustas
Section VI Unrestored Driven
Class X1 American thru 1969
Class X2 European thru 1969
Class IX Motorcycles 1900-1969 Judged first place only
Class RC Race Car Judged first place only from 1900 to present time
Class X Hot Rods Judged first place only
By invitation only Bonneville Salt Flat cars Judged first place only
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