There were three MP22s according to the notes I made in period:
MP22-01 destroyed Val Des Terres 1978
MP22-02 M Dungworth 1979; P Kaye 1980
MP22-03 (new in 1980) M Dungworth 1980 and 1981
Reading quickly through Mason, the MP22 story starts with Richard Shardlow in the ex-Tate of Leeds Brabham BT38 (identified on the BT38 thread as BT38/28) with a 2.0 BDG in 1973 (p249). ADO had the ex-Shardlow BT38 with a 2.0 BDA in 1974 (p253) and then had it rebuilt by Pilbeam as the R15 for 1975 (p267) and fitted with a 2.2 BDG. The R22 appeared in 1976 (p273) and was his R15 stretched and fitted with a Cosworth DFV. This became the MP22 in 1977 (p283) but was crashed at Doune (p289) and "totally rebuilt" for Dungworth to drive in 1978 (p290). He wrecked it as Val Des Terres (p294). Mason even calls it MP22-01 on one occasion.
Mason isn't clear on Dungworth's 1979 car but, in 1980, Dungworth had "a new MP22, chassis 03 built up" and his "old MP22-02" went to Kaye (p304).
Whether newly retired BT38 tubs were used for MP22-02 and MP22-03 is entirely unclear.
Allen
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