#1 (British, Competition Pub.) March 1972 is Vol. 1, No. 1 of this short-lived magazine. A strike in England killed it & I have seen nothing past Vol. 3, No. 2 for March 1974.
(British, quarterly.) Oct 1974 is Vol. 1, No. 3. Suspect this is the new version of the first Competition Car BUT NOT SURE. Have see nothing past 1975.