# C Sports Racer

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 | Engine |
| C 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 | Suzuki |
| Prototype 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 | Elan DP02 | Mazda |
| 2020 | James French | Swift 014 | Toyota |
| 2021 | Lee Alexander | Stohr WF1 | Suzuki |
| 2022 | Chip Romer | Elan | Mazda |
| 2023 | Todd Vanacore | Elan DP02 | Mazda |
| 2024 | Matt Romer | Elan DP02 | Mazda |