VINTAGE MODIFIED CATEGORY *VINTAGE PRODUCTION CATEGORY (4/BM) Sports cars (over 5.0L) B-modified (4/AP) *Select GT & earlier Allard JR production cars SVRA GROUP 4 Anderson Special (Chevrolet 5.7L, V8) Aston-Martin DB4/GT Bocar Chevrolet Corvette (327cid) Description and Class List *Cooper Monaco (2.5L) 250GT SWB (alloy body) Revision Date 1/2019 Cunningham C4R Maserati 3500GT/Sebring Devin. SS Mercedes 300SL Echidna Eligibility: Jaguar XK120/140/150/150S (3.8L) [disc Limited produced sports cars, racing Kellison GT brakes] "specials", Front-engine Formula Cars Lister-Chevrolet Jaguar XKE (3.8L) (SU) *Lotus 19 and GT cars built or in production prior to Sadler 1960. Certain high quality reproduction examples of eligible models may apply (4/BP) *Select GT & earlier for acceptance. Appropriate later cars by production invitation. (4/CM) Sports cars (3.0- 5.0L) DB4 (3670cc) C-modified Chevrolet Corvette (283cid) Background and philosophy: Ferrari 250GT (steel body) Group Four consists mainly of sports cars Allard K1 Ford Thunderbird (312cid) that represent the 'Golden Age' of sports Aston-Martin DER & DBS Jaguar XK-120/140/150 (3.8L) [drum brakes] car racing in the USA and Europe. Since Devin Chevrolet (283ci) Porsche 356 GS/GT Carrera 1500/1600 development and technology progressed Ferrari (various models) quite rapidly after 1960, this group open Ferrari 250 GTO (3.0L) to cars that were in production by the end Kiki MkIll (Ford 5.0L, V-8) (4/CP) *Select early of 1959. Certain continuation cars may be Jaguar C-type & Jaguar specials production accepted with prior approval. Post 1959 Jaguar D-type & XKSS (3.4/3.8) models may be accepted as appropriate. Jaguar XKE lightweight coupe AC Ace/Aceca-Bristol (1971cc) Lister-Jaguar Sprint Zagatto Modifications: Maserati 4508 Allard J2, J2X, GT (various American V-8 Since these cars mostly raced in open Porsche 904, 904GTS power) categories, there will be a lot of variations Arnolt-Bristol (1971cc) within a particular make and model that Aston Martin DB1 are period correct. Group Four cars are (4/DM) Sports cars (2.0–3.0L) Aston Martin DB2, DB2/4 expected to have only period (pre-1960) D-Modified / Sports cars (1.5- BMW 507 equipment and specifications. It is the 2.0L) E-Modified Chevrolet Corvette (265cid) responsibility of a competitor to provide Frazer-Nash (1971cc) documentation for any specification that Ambro-Triumph Jaguar XK120 (3.4L) is not generally considered appropriate. Aston Martin DBR (3.0L) Morgan plus 4 SS Ferran 250TR, GT, etc. Maserati 200s, 300s. Tipo-60 & 61 The intentions of the SVRA regulations (4/FM1) Sports Racing cars are to update the safety features of the Maserati A6GCS cars and to maintain the relative Porsche RS60, RS61 spyder (1.6L) (1100 - 1600c non Twin Cam) performance and behavior Tojeiro-Ace F-Modified thru 1967 characteristics of the individual make and models. Early rear engine cars with

Relevant Documents: (4/FM2) Modifieds (1100 - (disc brakes) 1600c non Twin Cam)  General Rules and Regulations (4/CSR) SCCA C-Sports Racing  Make and Model Regulations F-Modified thru 1962  SVRA Tire Regulations and early rear engine cars with through 1972 (under 1300cc) (drum brakes) Arachnid Notes: Beach Cooper-Climax Bobsy SR 2/3/4/5 This group has tire restrictions listed in the Elva Mk1 – 5 LeGrand SVRA Tire Regulations. Elva Mk6 Merlyn Mk4, Mk 6 Lola MkI Royale RP-4 Cars denoted with (*) are classified by Lotus 11, 15, 17 (FWB 1460, FPF 1475) potential rather than displacement only. Lotus 15 (FPF 1475) Lotus 9, 11, & 17 Group splitting, if necessary, as follows: Wheels: Wheels may be of an alternate Maserati 150s material but must be of a period design. 4A- includes (4/BM, CM, DM, AP, BP, CP) OSCA MT4 1500 4B- includes (4/CSR, FM1, FM2) Porsche MK, 550 spyder (1500) Tojeiro-Climax Tires: may not extend beyond the fender opening at the highest point of the tire. See the SVRA Tire Regulations for approved tires.