C Sports Racer (CSR) now known as Prototype 1 (P1) is a class in the Sports Car Club of America. it consists of open top prototype style cars. The maximum displacement is 1615cc, in a 2 valve crossflow engine, with a minimum weight of 1300lbs w/driver. Two cycle or 4 valve/4 cycle motors between 850cc and 1300cc are permitted with a minimum weight of 1200lbs. Supercharging and turbocharging are permitted within limits, and with a maximum displacement of 765cc. Some CSRs are Formula Atlantic or Formula SCCA cars converted by adding bodywork to the chassis.

C Sports Racer at the SCCA National Championship Runoffs

Year Driver Car EngineC Modified 1954 Jim Kimberly Ferrari 4.5 1955 Sherwood Johnston Ferrari/Jaguar D-Type 1956 Walt Hansgen Jaguar D-Type 1957 Walt Hansgen Jaguar D-Type 1958 Walt Hansgen Lister Jaguar 1959 Walt Hansgen Lister Jaguar 1960 Richard Thompson Chevrolet Corvette Chevrolet 1961 Peter Harrison Lister Chevrolet 1962 Harry Heuer Chaparral I Chevrolet 1963 Harry Heuer Chaparral I Chevrolet 1964 Ed Lowther Huffaker Genie Mk. 10 Ford 1965 Joe Starkey McLaren-Elva C Sports Racer 1966 Ralph Salyer McKee Oldsmobile 1967 Jerry Hansen Lola Chevrolet 1968 Mario Whittington Lotus 23 Ford 1969 Dan Carmichael Lotus 23B Ford 1970 Dan Carmichael Lotus 23B Ford 1971 Tom Evans Gardner Alfa Romeo 1972 William Holbrook Royale Ford 1973 Eric Kerman Arachnid Ford 1974 Samuel Gilliland Arachnid 3 Ford 1975 Jim Trueman Bobsy SR6 Ford 1976 Fred Stevenson Bobsy SR6 Ford 1977 Giuseppe Castellano Lola T498 Ford 1978 Jeff Miller Wynnfurst Lola 1979 Tom Foster Tiga Ford 1980 Fred Schilpin Lola T496 Ford 1981 Tom Foster Tiga SC81 Ford 1982 Terry McKenna Argo JM4 Ocelot Volkswagen 1983 Charles Billington Tracer TR2 Ford 1984 Tom Foster Tracer TR2 Ford 1985 Tom Foster Tracer TR2 Volkswagen 1986 Al Beasley Bease Decker 2 1987 Tom Foster Tracer TR2 Ford 1988 Tom Foster Tracer TR2 Ford 1989 Tom Foster Tracer TR2 Ford 1990 Charles Billington Tracer TR2 Ford 1991 Charles Billington Tracer TR2 Ford 1992 Charles Billington Tracer TR2 Ford 1993 Charles Billington Tracer TR2 Ford 1994 Greg Harrington Toyota 1995 Alexander Smith Pratt & Miller RM2 1996 Jeff Miller Wynnfurst 1997 Charles Billington Tracer TR2 Ford 1998 Ben Beasley Beasley B2 1999 Ben Beasley Beasley B2 2000 Alvin Beasley Jr. Beasley B2 2001 Ben Beasley Beasley B7 2002 Ben Beasley Beasley B7 2003 John Mirro Ralt 2004 Tony Loniewski Swift Viking Toyota 2005 Arnstein Loyning Swift Viking Toyota 2006 Peter Hans Swift 014.a Toyota 2007 Peter Hans Swift 014.a Toyota 2008 J.R. Osborne Stohr WF1 Suzuki 2009 Matt Miller Élan DP02 Mazda 2010 Steve Forrer Ralt RT41 Toyota 2011 Steve Forrer Ralt RT41 Toyota 2012 Steve Forrer Ralt RT41 Toyota 2013 Lee Alexander Stohr WF1 SuzukiPrototype 1 2014 Chris Farrell Stohr WF1 Suzuki 2015 Gianpaolo Ciancimino Stohr WF1 Suzuki 2016 James Devenport Norma M20-FC Honda 2017 Jonathan Eriksen Stohr WF1 Suzuki 2018 James Devenport Norma M20-FC Honda 2019 Todd Slusher Élan DP02 Mazda 2020 James French Swift 014 Toyota 2021 Lee Alexander Stohr WF1 Suzuki 2022 Chip Romer Elan Mazda 2023 Todd Vanacore Élan DP02 Mazda 2024 Matt Romer Élan DP02 Mazda

References