▁continued ▁improvement ▁had ▁pushed ▁the ▁D FR ▁power ▁output ▁to ▁nearly ▁, ▁ 6 0 % ▁higher ▁than ▁the ▁original ▁ 1 9 6 7 ▁D F V . ▁ ▁The ▁D FR ▁enjoyed ▁success ▁in ▁ 1 9 8 8 ▁with ▁Ben et ton . ▁The ▁team ▁was ▁the ▁best ▁performed ▁non - t ur bo ▁team ▁of ▁the ▁season ▁finishing ▁third ▁in ▁the ▁Con struct ors ' ▁Championship ▁behind ▁Ferr ari ▁( t ur bo ) ▁and ▁the ▁all - con qu ering ▁Mc L aren - H onda . ▁Th ier ry ▁B out sen ▁recorded ▁five ▁pod ium ▁finish es ▁and ▁Aless andro ▁N ann ini ▁scored ▁two ▁pod iums . ▁The ▁D FR ▁was ▁also ▁the ▁most ▁powerful ▁non - t ur bo ▁of ▁the ▁season ▁with ▁a ▁reported ▁. ▁This ▁compared ▁to ▁the ▁ 5 9 0 ▁of ▁the ▁D F Z ▁and ▁the ▁new ▁Jud d ▁V 8 ▁with ▁a ▁reported ▁. ▁Unfortunately ▁this ▁still ▁lag ged ▁behind ▁the ▁H onda ▁and ▁Ferr ari ▁tur bos ▁which ▁were ▁producing ▁over ▁ ▁each . ▁ ▁North ▁American ▁series ▁ ▁D FX ▁A ▁ 2 . 6 5 L ▁tur bo charg ed ▁version ▁of ▁the ▁D F V ▁was ▁developed ▁priv ately ▁by ▁the ▁V els ▁Par n elli ▁Jones ▁team ▁for ▁the ▁ 1 9 7 6 ▁US AC ▁season , ▁in ▁the ▁face ▁of ▁opposition ▁from ▁D uck worth . ▁The ▁Par n elli - C os worth ▁car ▁took ▁its ▁first ▁victory ▁at ▁the