V ▁that ▁was ▁officially ▁produced ▁by ▁Cos worth . ▁The ▁engine ▁was ▁a ▁direct ▁replacement ▁for ▁its ▁D F V ▁parent ▁in ▁Lot us ' s ▁ 4 9 s . ▁The ▁small ▁engine ▁proved ▁just ▁as ▁compet itive ▁as ▁the ▁larger ▁version ; ▁and ▁Jim ▁Clark ▁took ▁four ▁race ▁vict ories ▁in ▁ 1 9 6 8 , ▁followed ▁by ▁one ▁win ▁for ▁P iers ▁Cou rage ▁and ▁two ▁vict ories ▁for ▁Jo chen ▁R ind t ▁in ▁ 1 9 6 9 . ▁D erek ▁Bell ▁drove ▁a ▁D F W ▁version ▁of ▁the ▁B rab ham ▁B T 2 6 ▁to ▁second ▁place ▁in ▁the ▁ 1 9 7 0 ▁New ▁Zealand ▁Grand ▁Prix , ▁and ▁for ▁the ▁ 1 9 7 1 ▁Tas man ▁Series ▁previous ▁champion ▁Chris ▁Am on ▁drove ▁a ▁D F W - power ed ▁version ▁of ▁his ▁current ▁Formula ▁One ▁ch ass is , ▁the ▁March ▁ 7 0 1 , ▁to ▁another ▁pod ium ▁finish , ▁but ▁in ▁both ▁years ▁the ▁Formula ▁One - der ived ▁engine ▁was ▁largely ▁out match ed ▁by ▁Formula ▁ 5 0 0 0 ▁entr ants . ▁After ▁the ▁dem ise ▁of ▁the ▁ 2 . 5 L ▁component ▁of ▁the ▁Tas man ▁Formula ▁following ▁the ▁ 1 9 7 1 ▁season , ▁the ▁four ▁D F W ▁engines ▁were ▁converted ▁to ▁D F V ▁specification . ▁ ▁Formula ▁One ▁The ▁D F V ▁had ▁three ▁major ▁up gr ades ▁over ▁its ▁life ▁in ▁the ▁top ▁formula , ▁with