[[File:Steve Forrer wins 2013 SCCA National Championship Runoffs in C Sport Racer.jpg|thumb|right|Steve Forrer racing to his CSR win at the 2013 SCCA National Championship Runoffs]] '''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.<ref>{{Cite web|url=http://www.na-motorsports.com/Organizations/SCCA/Racing/Rules.html|title=Introduction to SCCA Racing Rules}}</ref>
==C Sports Racer at the SCCA National Championship Runoffs==
{| class="wikitable" |- ! Year !! Driver !! Car !! Engine |- ! colspan=4|C Modified |- | 1954 || {{flagicon|USA}} Jim Kimberly || Ferrari 4.5 || |- | 1955 || {{flagicon|USA}} Sherwood Johnston || Ferrari/Jaguar D-Type || |- | 1956 || {{flagicon|USA}} Walt Hansgen || Jaguar D-Type || |- | 1957 || {{flagicon|USA}} Walt Hansgen || Jaguar D-Type || |- | 1958 || {{flagicon|USA}} Walt Hansgen || Lister || Jaguar |- | 1959 || {{flagicon|USA}} Walt Hansgen || Lister || Jaguar |- | 1960 || {{flagicon|USA}} Richard Thompson || Chevrolet Corvette || Chevrolet |- | 1961 || {{flagicon|USA}} Peter Harrison || Lister || Chevrolet |- | 1962 || {{flagicon|USA}} Harry Heuer || Chaparral I || Chevrolet |- | 1963 || {{flagicon|USA}} Harry Heuer || Chaparral I || Chevrolet |- | 1964 || {{flagicon|USA}} Ed Lowther || Huffaker Genie Mk. 10 || Ford |- | 1965 || {{flagicon|USA}} Joe Starkey || McLaren-Elva || |- ! colspan=4| C Sports Racer |- | 1966 || {{flagicon|USA}} Ralph Salyer || McKee || Oldsmobile |- | 1967 || {{flagicon|USA}} Jerry Hansen || Lola || Chevrolet |- | 1968 || {{flagicon|USA}} Mario Whittington || Lotus 23|| Ford |- | 1969 || {{flagicon|USA}} Dan Carmichael || Lotus 23B|| Ford |- | 1970 || {{flagicon|USA}} Dan Carmichael || Lotus 23B|| Ford |- | 1971 || {{flagicon|USA}} Tom Evans || Gardner || Alfa Romeo |- | 1972 || {{flagicon|USA}} William Holbrook || Royale || Ford |- | 1973 || {{flagicon|USA}} Eric Kerman || Arachnid || Ford |- | 1974 || {{flagicon|USA}} Samuel Gilliland || Arachnid 3 || Ford |- | 1975 || {{flagicon|USA}} Jim Trueman || Bobsy SR6 || Ford |- | 1976 || {{flagicon|USA}} Fred Stevenson || Bobsy SR6 || Ford |- | 1977 || {{flagicon|USA}} Giuseppe Castellano || Lola T498 || Ford |- | 1978 || {{flagicon|USA}} Jeff Miller || Wynnfurst Lola || |- | 1979 || {{flagicon|USA}} Tom Foster || Tiga || Ford |- | 1980 || {{flagicon|USA}} Fred Schilpin || Lola T496 || Ford |- | 1981 || {{flagicon|USA}} Tom Foster || Tiga SC81 || Ford |- | 1982 || {{flagicon|USA}} Terry McKenna || Argo JM4 Ocelot || Volkswagen |- | 1983 || {{flagicon|USA}} Charles Billington || Tracer TR2 || Ford |- | 1984 || {{flagicon|USA}} Tom Foster || Tracer TR2 || Ford |- | 1985 || {{flagicon|USA}} Tom Foster || Tracer TR2 || Volkswagen |- | 1986 || {{flagicon|USA}} Al Beasley || Bease Decker 2 || |- | 1987 || {{flagicon|USA}} Tom Foster || Tracer TR2 || Ford |- | 1988 || {{flagicon|USA}} Tom Foster || Tracer TR2 || Ford |- | 1989 || {{flagicon|USA}} Tom Foster || Tracer TR2 || Ford |- | 1990 || {{flagicon|USA}} Charles Billington || Tracer TR2 || Ford |- | 1991 || {{flagicon|USA}} Charles Billington || Tracer TR2 || Ford |- | 1992 || {{flagicon|USA}} Charles Billington || Tracer TR2 || Ford |- | 1993 || {{flagicon|USA}} Charles Billington || Tracer TR2 || Ford |- | 1994 || {{flagicon|USA}} Greg Harrington || || Toyota |- | 1995 || {{flagicon|USA}} Alexander Smith || Pratt & Miller RM2 || |- | 1996 || {{flagicon|USA}} Jeff Miller || Wynnfurst || |- | 1997 || {{flagicon|USA}} Charles Billington || Tracer TR2 || Ford |- | 1998 || {{flagicon|USA}} Ben Beasley || Beasley B2 || |- | 1999 || {{flagicon|USA}} Ben Beasley || Beasley B2 || |- | 2000 || {{flagicon|USA}} Alvin Beasley Jr. || Beasley B2 || |- | 2001 || {{flagicon|USA}} Ben Beasley || Beasley B7 || |- | 2002 || {{flagicon|USA}} Ben Beasley || Beasley B7 || |- | 2003 || {{flagicon|USA}} John Mirro || Ralt || |- | 2004 || {{flagicon|USA}} Tony Loniewski || Swift Viking || Toyota |- | 2005 || {{flagicon|USA}} Arnstein Loyning || Swift Viking || Toyota |- | 2006 || {{flagicon|USA}} Peter Hans || Swift 014.a|| Toyota |- | 2007 || {{flagicon|USA}} Peter Hans || Swift 014.a|| Toyota |- | 2008 || {{flagicon|USA}} J.R. Osborne || Stohr WF1 || Suzuki |- | 2009 || {{flagicon|USA}} Matt Miller || Élan DP02|| Mazda |- | 2010 || {{flagicon|USA}} Steve Forrer || Ralt RT41|| Toyota |- | 2011 || {{flagicon|USA}} Steve Forrer || Ralt RT41|| Toyota |- | 2012 || {{flagicon|USA}} Steve Forrer || Ralt RT41|| Toyota |- | 2013 || {{flagicon|USA}} Lee Alexander || Stohr WF1 || Suzuki |- ! colspan=4|Prototype 1 |- | 2014 || {{flagicon|USA}} Chris Farrell || Stohr WF1 || Suzuki |- | 2015 || {{flagicon|USA}} Gianpaolo Ciancimino || Stohr WF1 || Suzuki |- | 2016 || {{flagicon|USA}} James Devenport || Norma M20-FC|| Honda |- | 2017 || {{flagicon|USA}} Jonathan Eriksen || Stohr WF1 || Suzuki |- | 2018 || {{flagicon|USA}} James Devenport || Norma M20-FC|| Honda |- | 2019 || {{flagicon|USA}} Todd Slusher || Élan DP02|| Mazda |- | 2020 || {{flagicon|USA}} James French || Swift 014|| Toyota |- | 2021 || {{flagicon|USA}} Lee Alexander || Stohr WF1 || Suzuki |- | 2022 || {{flagicon|USA}} Chip Romer || Elan || Mazda |- | 2023 || {{flagicon|USA}} Todd Vanacore || Élan DP02|| Mazda |- | 2024 || {{flagicon|USA}} Matt Romer || Élan DP02|| Mazda |} <ref>{{cite web|title=SCCA Runoffs Driver Histories|url=http://cdn.growassets.net/user_files/scca/downloads/000/007/292/14-runoffs-drivers-full.pdf?1433530602|website=SCCA|accessdate=28 August 2016}}</ref>
== References == {{Commons category|C Sports Racing}} {{Reflist}}
Category:Sports prototypes Category:Sports Car Club of America Category:Sports car racing series
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