Maserati 250F the one owned by Owen organisation at one stage [ BRM ].

Reposting a photo and some of the story - from Jim Bennett [ Mr F.U.R.I. ]

Name: Ardmore 1989 #15 Maserati 250F side view CCI10122015_0002 (800x538) (2).jpg Views: 1332 Size: 129.8 KB

Jim Bennett wrote ;
" Images of 250F Maserati ex Amon etc. Owen Organisation. You may be aware , but, in the book by Tony Rudd who was employed by BRM at this time they had purchased an early model 250F to use to assist with development the 4 cylinder 2.5 F1 car.
From memory it had been entered in a UK event but had not been delivered in time. Prince Bira - who had an earlier (the first 250F ?) was not entered for the event and was prevailed upon to loan his car to BRM.
In the event it was driven by Ken Wharton who managed to crash it heavily so that BRM took over Bira's car and gave him the newer 250F. This would have been the car he raced in NZ. Rudd set out the modifications that BRM made to the Bira car, Dunlop disc brakes and wheels and significant stiffening of the chassis.
So that the car that Amon raced was probably one of the better developed 250F Maseratis. "