Apperson 1 Auburn 7 Bentley 1 Biddle 6 Bugatti 1 Buick 10 Cadillac 7 Case 7 Chevrolet 15 Citroen 1 Cleveland 1 Cole 7 Cunningham 7 Davis 2 Dodge 8 Du Pont 1 Durant 1 Elcar 2 Essex 7 Ford 28 Fordson 1 Franklin 6 Gardner 1 Graham Brothers 3 Hispano-Suiza 1 Hudson 10 Hupmobile 6 Jordan 2 Locomobile 6 Mack Trucks 1 Marmon 6 Maxwell 6 Mitchell 3 Moon 2 Nash 8 Oakland 6 Oldsmobile 8 Packard 8 Paige 7 Peerless 1 Pierce-Arrow 7 Reo 11 Rickenbacker 1 Roamer 2 Rolls Royce 1 Scripps Booth 1 Stearns Knight 3 Studebaker 9 Stutz 7 Willys 9 Winton 4