Lurani Trophy is for original Formula Junior cars of Period E (FJ/1) built in 1958-60, and of Period F (FJ/2) built in 1961-63, corresponding to the original Formula Junior Regulations as well as conforming of art. 3 and art. 6.19 of Appendix K : all cars shall have a valid HTP showing both the Date of original Manufacture asserted prior to 1966 and Year Asserted between 1958 and 1964.

To be eligible to participate in the Lurani Trophy as a Formula Junior car, the car must have been constructed in period to the specification of FIA Formula Junior. Continuation cars or modern replicas are not permitted.

The different classes are:

A :

Category FJ/1A, Front-engined Formula Junior cars fitted with Fiat or Lancia engines and built and raced before 31.12.1960.

B1 :

Category FJ/1B, Front-engined Formula Junior cars built to race before 31.12.1960 (except cars falling within Class A) fitted with engines of 1000cc or less.

B2 :

Category FJ/1B, Front-engined Formula Junior cars built to race before 31.12.1960 (except cars falling within Class A) fitted with engines of 1100cc or less but in excess of 1000cc.

C1 :

Category FJ/1C, Rear-engined Formula Junior cars built and raced (or officially entered to race) before 31.12.1960 fitted with engines of 1000cc or less.

C2 :

Category FJ/1C, Rear-engined Formula Junior cars built and raced (or officially entered to race) before 31.12.1960 fitted with engines of 1100cc or less but in excess of 1000cc

D1 :

Category FJ/2D, Rear-engined and front-engined Formula Junior cars built and raced between 01.01.1961 and 31.12.1963 and fitted with drum brakes on all four wheels, as original specification and fitted with engines of 1000cc or less.

D2 :

Category FJ/2D, Rear-engined and front-engined Formula Junior cars built and raced between 01.01.1961 and 31.12.1963 and fitted with drum brakes on all four wheels, as original specification and fitted with engines of 1100cc or less but in excess of 1000cc.

E1 :

Category FJ/2E, Rear-engined and front-engined Formula Junior cars fitted with Ford engines built and raced between 01.01.1961 and 31.12.1963 and fitted with a disc brake or brakes.

E2 :

Category FJ/2E, Rear-engined and front-engined Formula Junior cars fitted with engines other than Ford built and raced between 01.01.1961 and 31.12.1963 and fitted with a disc brake or brakes.