# D Sports Racing

D Sports Racing now known as Prototype 2 is a sports prototype racecar class for road racing by the Sports Car Club of America. It has been called the one racing category that remains unfettered by regulations that have throttled innovation elsewhere in motorsport.
Usually known simply as DSR, the class began in 1968. DSR evolved from the SCCA's older H Modified class, which traces its roots back to the early 1950s. Today's DSR cars normally use a 1000cc four cylinder engine sourced from a Japanese motorcycle. Several other engines are allowed.
DSR's generally weigh under 1000 lbs with the driver and make 200 bhp at 13,000rpm. The relatively low cost of the engines and some new chassis manufacturers led to an explosion in growth of the class between the years 2000 and 2008. DSR's were the fastest class at the SCCA National Championship races in 2008.

## Manufacturers

* A-Mac
* Cheetah
* Diasio
* Dragon
* Galmer
* LSR Prince
* Radical
* Speads
* Stohr Cars
* West Race Cars

## SCCA National Championship Runoffs

| Year | Winner | Car | Engine |
| 1966 | Ed Luke | Lotus | Chevrolet |
| 1967 | Wayne Koch | Koch | |
| 1968 | Fred Plotkin | Abarth Special | |
| 1969 | Eric Kerman | Arachnid | Honda |
| 1970 | Marvin Thomson | Bobsy-Imp | |
| 1971 | Harry Stephenson | Maru | Honda |
| 1972 | Harry Stephenson | Maru | Honda |
| 1973 | Ronald Dennis | Ocelot | Suzuki |
| 1974 | Bob Marshall | Quasar | Suzuki |
| 1975 | Kendall Noah | Ocelot Mk.A | Suzuki |
| 1976 | Jeff Miller | Wynnfurst | Kohler |
| 1977 | Jeff Miller | Wynnfurst | Kohler |
| 1978 | Dave Leeson | LeGrand Mk.18 | Kohler |
| 1979 | Dave Leeson | LeGrand Mk.18 | Kohler |
| 1980 | Jerry Smith | LeGrand Mk.25 | Kohler |
| 1981 | Jeff Miller | Lola T540 | Kohler |
| 1982 | Paul Decker | LeGrand Mk.18 | Suzuki |
| 1983 | Jeff Miller | Wynnfurst | Kohler |
| 1984 | Thomas Jagemann | Lola | Kohler |
| 1985 | Paul Decker | Decker Mk.1/2 | |
| 1986 | Paul Decker | Decker Mk.1 | |
| 1987 | Paul Decker | Decker Mk.1 | |
| 1988 | Al Beasley Sr. | Bease-Decker Mk.II | |
| 1989 | Travis Duder | McCann | |
| 1990 | Michael Reupert | Lola | |
| 1991 | Travis Duder | Crossle | Nissan |
| 1992 | Travis Duder | Crossle | Nissan |
| 1993 | Travis Duder | Crossle | Nissan |
| 1994 | David Kaiser | LeGrand Mk.25D | |
| 1995 | David Kaiser | LeGrand Mk.25D | |
| 1996 | David Kaiser | LeGrand Mk.25D | |
| 1997 | Michael Reupert | Lola | |
| 1998 | Travis Duder | Cheetah SR-1 | |
| 1999 | Bruce Sunseri | Cheetah SR-1 | |
| 2000 | Al Beasley Jr. | BeaseDecker Mk.1 | |
| 2001 | Marc Hoover | Cheetah | Mazda |
| 2002 | Mark Jaremko | Stohr 03D | |
| 2003 | Mark Jaremko | Stohr 03D | |
| 2004 | John Hill | Stohr | |
| 2005 | Mark Jaremko | Stohr WF1 | |
| 2006 | Mark Jaremko | Stohr WF1 | |
| 2007 | J.R. Osborne | Stohr WF1 | |
| 2008 | J.R. Osborne | Stohr WF1 | |
| 2009 | Garry Crook | Stohr WF1 | Suzuki |
| 2010 | Lawrence Loshak | Stohr WF1 | Suzuki |
| 2011 | Tom Bootz | Stohr WF1 | Suzuki |
| 2012 | Scott Tucker | West WX10 | Suzuki |
| 2013 | Chris Farrell | Stohr WF1 | Suzuki |
| Prototype 2 ||||
| 2014 | Fabian Okonski | Stohr 01D | Suzuki |
| 2015 | Chris Farrell | Stohr WF1 | Suzuki |
| 2016 | Jeff Shafer | Stohr WF1 | Suzuki |
| 2017 | Jeff Shafer | Stohr WF1 | Suzuki |
| 2018 | Tim Day Jr. | Stohr WF1 | Suzuki |
| 2019 | Tray Ayres | Van Diemen RF00 | Mazda |
| 2020 | Greg Gyann | Stohr WF1 | Suzuki |
| 2021 | Tim Day Jr. | Stohr WF1 | Suzuki |
| 2022 | Greg Gyann | Stohr WF1 | Suzuki |
| 2023 | Lucian Pancea | Stohr WF1 | Suzuki |