Quote:
Originally Posted by Anyopenroad
How did the historic racing world settle on 1966 as its before/after year?
My non-expert eye sees the Ford GT40, Can-Am monsters and winged F1 cars starting about then. Are these simply visible examples of significant technological advances which make 1966 such an important crux point?
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Historic racing is spilt into many age groups, stopping at 1990. That's when the FIA decided technological advances were too big. This is from FIA Appendix K regulations....
3. DATE CLASSIFICATIONS AND DEFINITIONS 3.1 A car will be dated by the specification of that car and not necessarily by the date of build. 3.2 Dating periods are as follows:
A) before 1/1/1905.
B) 1/1/1905 to 31/12/1918.
C) 1/1/1919 to 31/12/1930.
D) 1/1/1931 to 31/12/1946.
E) 1/1/1947 to 31/12/1961 (from 1/1/1946 for Grand Prix and Formula 3 cars and up to 31/12/1960 for single-seat and twoseat racing cars).
F) 1/1/1962 to 31/12/1965 (from 1/1/1961 for single-seat and two-seat racing cars and up to 31/12/1966 for Formula 2), excluding Formula 3 and single engine-make Formulae.
GR) 1/1/1966 to 31/12/1971 for single-seat and two-seat Racing cars
(1/1/1964 to 31/12/1970 for Formula 3).
G1) 1/1/1966 to 31/12/1969 for homologated Touring and GT cars.
G2) 1/1/1970 to 31/12/1971 for homologated Touring and GT cars.
HR) 1/1/1972 to 31/12/1976 for single-seat and two-seat Racing cars (1/1/1971 to 31/12/1976 for Formula 3).
H1) 1/1/1972 to 31/12/1975 for homologated Touring and GT cars.
H2) 1/1/1976 to 31/12/1976 for homologated Touring and GT cars.
IR) 1/1/1977 to 31/12/1982 for single-seat and two-seat Racing cars (excluding Group C) and 1/1/1977 to 31/12/1985 for 3-litre F1.
I) 1/1/1977 to 31/12/1981 for homologated Touring and GT cars.
IC) 1/1/1982 to 31/12/1990 for Group C and IMSA cars.
JR) 1/1/1983 to 31/12/1990 for single-seat and two-seat Racing cars (excluding 3 litres F1 cars 1/1/1983 to 31/12/1985).
J1) 1/1/1982 to 31/12/1985 for homologated Touring and GT cars.
J2) 1/1/1986 to 31/12/1990 for homologated Touring and GT cars.