HSR 2020 RACE / ENDURO CLASSES (updated 1/20/2020) Grp 2 Vintage Sports Cars & Sedans as produced and raced thru +/- 1967* Class Enduro E-class (VP) Vintage Production Cars, thru ~ 1967 SCCA A/B-Production (early): Corvette C-1; Aston Martin; Ferrari; Jaguar 120/140/150; 356 2.0L, etc. VP/1 V V3 SCCA C-Production (early): Lotus S7, Elan, Europa; Ginetta G4; Morgan SS; Alfa GTZ, etc. VP/2 V V3 SCCA D-Production (early): A-Healey 3000; Datsun 2000; Porsche 356, 911 (FIA); TR4; Morgan +4; Volvo P1800; Yenko Stinger, etc. VP/3 V V4 SCCA E-Production: A/R Giulia; A-Healey 100-4/6; MGB; Fiat 124; Elva Courier; Morgan 4/4; 912; TR3, GT6; Turner 1500; TVR, etc. VP/4 V V5 SCCA F-Production: Datsun 1600; Spridget 1275; Spitfire 1296/1500; MGA; Sunbeam Alpine; Fiat 124, etc. VP/5 V V5 SCCA G-Production: A/R Giulietta; Datsun 1500; Fiat X1/9; Spridget 1100; Spitfire 1147; Turner 950, etc. VP/6 V V5 SCCA H-Production: Sprite 948; Fiat 850; Fiat Abarth; MG Tc/Td/Tf; Opel GT, etc. VP/7 V V5 Vintage B-Sedans, etc. (over 1.5L): Jaguar Mk II; Corvair; Volvo 544/122; Lotus Cortina, etc. S/5 V V4 Vintage C-Sedans, etc. (under 1.5L): Mini; Fiat; Abarth; NSU; Saab, etc. S/6 V V5 (VM) Vintage Sports Racing Cars (Modifieds), pre ~ 1961 SCCA B, C -Modifieds (Over 3.0L): Jaguar; Echidna; Lister; Scarab; Ferrari; Bocar, etc. VM/1 V V3 SCCA D-Modifieds (2.0L - 3.0L): Aston Martin; Ferrari; Maserati, etc. VM/2 V V4 SCCA E, F-Modifieds (1.2L - 2.0L): Porsche RSK, RS 60, 61; Lotus 11, 15, 17; Elva II-VI; Lola I; OSCA, etc. VM/3 V V5 SCCA G, H-Modifieds (Under 1.2)L: Bandini; Berkeley; Elva, Lotus; Jabro; Devin, etc. VM/4 V V5 (VSR) Vintage Sports Racing Cars, 1961 ~ 1967 C-Sports Racers, under 1.3L: Merlyn, Landar; Lotus; Royale; Bobsy, etc. VSR/3 V V3 D-Sports Racers, H-Modifieds, under 1.0L: Bobsy, Ocelot; LeGrand; Quasar, etc. VSR/4 V V5 (SS) Street Stock Series Street Stock Touring : (Firehawk, Escort, IT, Motorola, Luk, etc.) [may use Gr3 tires] see HSR Street Stock Category Rules SS/D V V4 Unspecified cars running in group but not eligible for awards, points or podium 2X V VX Grp 3 Vintage Sports Cars & Sedans as produced and raced thru +/- 1985* Class Enduro E-class (HP) Historic Production Cars post ~ 1967 *SCCA B-Production: Shelby GT350; Corvette 327; Porsche 904/GTS; XKE *(limited prep) HP/5 V V2 SCCA GT3: Porsche 914/6 (2.2/2.4L); 911 (2.2/2.5L); Datsun 280Z; MGB/V8 (3.5L), etc. HP/6 V V2 SCCA C-Production (late): Porsche 911R 2.0L, 914/6GT 2.0L; Datsun 240/260Z; Lotus 26R, 47, Sunbeam Tiger, etc. HP/7 V V3 SCCA D-Production (late): Jensen Healey; TR6; Porsche 914, 914/6 (2.0L, single plug), 924, 944; Mazda RX7; A/R Spider, etc. HP/8 V V4 *Early SCCA A-Sedan: 5.0L limit: Mustang; Barracuda, Valiant, Dodge Dart; Falcon, etc. *(limited prep) S/2 V V2 IMSA RS Sedans: post 1972 specs (IMSA RS, SCCA 2.5 Challenge, etc.): VW Rabbit, Colt, Pacer, Gremlin, Charger, RX2/3, Vega, etc. S/3 V V3 SCCA B-Sedan: pre 1972 specs: Datsun 510, 610; Alfa GTV; BMW 2002; Pinto; Toyota; Volvo 142/144, etc. S/4 V V4 Small-bore production [ProdCar]: (post 1972 SCCA H/P, G/P, F/P specs - slicks allowed) H/PC V VX Modified Production GT & Sedans: cars deemed appropriate for Gr. 3, modified beyond approved specifications MP/3 V V2 (SS) Street Stock Series Street Tuner C: Street Stock cars with limited modifications including aero enhancements by application and individual acceptance ST/C V VX Street Stock Grand Sport: (Firehawk, Escort, IT, Motorola, Luk, etc.) see HSR Street Stock Category Rules SS/B V V2 Street Stock Sport: (Firehawk, Escort, IT, Motorola, Luk, etc.) see HSR Street Stock Category Rules SS/C V V3 (VSR) Vintage Sports Racing Cars SCCA CSR/USRRC (1964 ~ 72) under 1.6L: Royale RP; Bobsy; Lotus 23c, etc. VSR/1 V V1 SCCA E/F-Modified (thru ~ 1964) under 1.6L: Lotus 23b; Elva Mk 7/8; Merlyn, etc. VSR/2 V V1 (MSR) Modern Sports Racing Cars Modern Sports Racers: Spec Racer Ford (SRF); Toyota WSR, Sports Renault, etc. MSR/3 V V1 Unspecified cars running in group but not eligible for awards, points or podium 3X V VX HSR 2020 RACE / ENDURO CLASSES (updated 1/20/2020) Grp 4 Vintage/Historic/Modern Formula (Open-wheeled) Cars GT3 GTM GTM3 4a (VF) Vintage Formula Cars Classic Monoposto (Monoposto Racing rules apply) {approved treaded tires} Formula 1/2; pre 1973 VF/1 NA NA Formula B; pre 1973 (1600cc) VF/2 NA NA Club Ford; post 1973 (1600cc-spec tires) VF/3 NA NA Formula Ford; pre 1973 (1600cc-spec tires) VF/4 NA NA Formula Junior (rear engine) (1100cc) VF/5 NA NA Formula Vee, Front engine FJ (1100cc) VF/6 NA NA (HF) Historic Formula Cars Monoposto Formula 70 (1973 - 1979) (Monoposto Racing F/70 rules apply) {slicks} 4b Formula 1 / Formula 5000 / Formula A (over 2.0L) HF/1 NA NA Formula 2 (2.0L) HF/2 NA NA Formula B/Atlantic (1600cc) HF/3 NA NA Formula C/Continental/Super Vee HF/4 NA NA (MF) Modern Formula Cars, post 1979 4c F/1, Indy Car; post 1990 MF/1 NA NA F/1, Indy Car; pre 1990, also modern Indy Lights (02-15) MF/2 NA NA Indy Lights, F/3000, F/Holden, etc. MF/3 NA NA F/2, Toyota Atlantic, etc. MF/4 NA NA FF2000, F/Continental, etc. MF/5 NA NA Unspecified cars running in group but not eligible for awards, points or podium 4X NA NA Note: Post 2015 cars may run but will not be eligible for points or podium (HSR Five Year Rule) Grp 5 Classic Big-Bore Sportscars and Sedans Class Enduro E-class (HP) Historic Production Cars, 1967 +/- 1975 (listed treaded tires)* SCCA A-Production: Corvette C-2/3 454/427; Cobra 427, etc. HP/1 GTC GTC2 SCCA B-Production: Corvette C-2/3 327/350; Shelby GT350; AMX; Jaguar XKE, XJS, XKE V12; Ferrari GTB, Porsche 930, etc. HP/2 GTC GTC3 Porsche RS Cup: Porsche 911 RSR, IROC (3.0L), etc. HP/3 GTC GTC3 SCCA GT2: BMW 3.0/3.5 CSL; MGB/GT V8 (3.9-4.2L); Porsche 911 (2.7-2.8L); 914/6 (2.5L), etc. HP/4 GTC GTC4 Classic Trans-Am thru 1972 (5.0L): Camaro; Firebird; Mustang; Boss 302; Barracuda; Javelin, etc. H/TA GTC GTC3 American Sedans (over 5.0L): Mustang; Camaro; Dodge; Plymouth Barracuda; Firebird, etc. S1 GTC GTC4 (MP) Modified Production Cars, 1967 +/- 1975 (listed treaded tires)* Modified Production GT & Sedans, over 5.8L: cars deemed appropriate for Gr 5, modified beyond approved specifications MP/1 GTC GTC1 Modified Production GT & Sedans, under 5.8L: cars deemed appropriate for Gr 5, modified beyond approved specifications MP/2 GTC GTC2 IMSA 1975 - 1984 GTU/SCCA GT2/3: under 3.0L (slicks permitted) GTU H H7 (SS) Street Stock Series Street Stock Supercars , etc: Corvette ZR1; Dodge Stealth; Lotus Esprit; Ferrari 348/355; Nissan 300ZX-T; Porsche 911/T; Mazda RX7/T, etc. SS/AA GTC GTC1 Street Stock Super Sport: (GrandAm-ST, Firehawk, Escort, IT, Motorola, Luk, etc.), see HSR Street Stock Category Rules SS/A GTC GTC4 Street Tuner B: Street Stock cars with limited modifications including aero enhancements by application and individual acceptance ST/B GTM GTCX/GTM6 Select USRRC/FIA World Sportscar Championship coupes {listed treaded tires} ASR/USRRC over 2.0L: Cheetah; Corvette GS; Corvair V8; Daytona Coupe; Brabham BT8, etc. V/ASR GTC GTC2 BSR/USRRC under 2.0L: Porsche 906; Elva BMW; Chevron B16; Lola T210/212, etc. V/BSR GTC GTC2 Unspecified cars running in group but not eligible for awards, points or podium 5X GTC GTCX Grp 6 Historic / Post-Historic / Modern Era Prototypes Class Enduro E-class ( FIA) LeMans Prototypes / World Sports Cars / Daytona Prototypes *Current FIA/IMSA Prototypes (post '14): Ligier; Audi R18e; Nissan, Toyota TS; Porsche 919, HPD/ARX-03; Toyota B12/60, etc. 6X P PX IMSA/FIA Prototypes (P1/LMP1/LMP900/LMGTP/SR1) post '98: Audi R8/10; Pescarolo; Peugeot 908; Lola B2K, etc. LMP1 P P1 IMSA/FIA Prototypes (P2/LMP2/LMP675/SR2/PC) post '98: Oreca FLM 09; Porsche RS Spyder; Pilbeam; Lola; Courage; Acura, etc. LMP2 P P2 FIA World Sports Cars (WSC) '94-98: Ferrari 333SP; R&S III; Kudzu; Cannibal; Hawk; Spice; Chevron, etc. WSC P P2 GrandAm/IMSA Daytona Prototypes (Gen 3) '12-15: Corvette Coyote DP; Riley XXVI DP/1 P P2 GrandAm/IMSA Daytona Prototypes (Gen 1/2) '03-11: Riley XI/XX; Doran; Crawford; Dallara, etc. DP/2 P P3 IMSA GTP / FIA Group C FIA Group C, IMSA GTP: Lola T600; Nissan; Toyota; Jaguar XJR; Porsche 956/962, etc. GTP P P4 FIA Group C2, IMSA Camel Lights: Spice; Kudzu; Tiga; Alba; Argo; etc. GTPL P P5 Unspecified cars running in group but not eligible for awards, points or podium 6X P PX *Note-1: Post 2015 cars may run but will not be eligible for points or podium (HSR Five Year Rule) HSR 2020 RACE / ENDURO CLASSES (updated 1/20/2020) Grp 7 Historic / Post-Historic Sports Racing Cars (slicks) Class Enduro E-class Can-Am / USRRC / FIA Gr 6 / A, B, C Sports Racer / Sports 2000 Classic Can-Am/ASR, pre 1974, (over 6.5L): McLaren M20, M8; Shadow DN4; Lola T163, T222, T260, T310, etc.