▁motor ▁racing , ▁very ▁much ▁against ▁his ▁family ' s ▁wishes . ▁So on ▁B irk in ▁was ▁one ▁of ▁the ▁Bent ley ▁Boys , ▁described ▁as ▁" the ▁greatest ▁Brit on ▁of ▁his ▁time " ▁by ▁W . ▁O . ▁Bent ley . ▁In ▁ 1 9 2 8 ▁B irk in ▁entered ▁the ▁Le ▁Mans ▁race ▁again , ▁leading ▁the ▁first ▁twenty ▁la ps ▁until ▁a ▁jam med ▁wheel ▁forced ▁him ▁to ▁drop ▁back , ▁finishing ▁fifth . ▁He ▁won ▁the ▁race ▁in ▁ 1 9 2 9 , ▁racing ▁the ▁Speed ▁Six ▁as ▁co - driver ▁to ▁W ool f ▁Bar n ato . ▁ ▁Base ▁car ▁ ▁W . ▁O . ▁Bent ley ▁wanted ▁a ▁more ▁powerful ▁car , ▁so ▁he ▁developed ▁a ▁bigger ▁model , ▁the ▁Speed ▁Six . ▁▁ ▁It ▁was ▁a ▁huge ▁car . ▁E tt ore ▁Bug atti ▁once ▁referred ▁to ▁the ▁Bent ley ▁as ▁" the ▁world ' s ▁fast est ▁l orry " ▁(" Le ▁cam ion ▁plus ▁v ite ▁du ▁monde "). ▁ ▁Bent ley ▁ad her ed ▁strictly ▁to ▁his ▁own ▁assertion ▁that ▁increasing ▁disp lacement ▁is ▁always ▁prefer able ▁to ▁forced ▁induction : ▁ ▁However , ▁in ▁the ▁winter ▁of ▁ 1 9 2 6 / 7 , ▁ch ass is ▁FR 5 1 8 9 , ▁a ▁ 3 - lit re ▁car , ▁was ▁the ▁first ▁car ▁fitted ▁with ▁a ▁super char ger ▁at ▁the ▁factory . ▁Using ▁a ▁Ro ots - type ▁blow er ▁over ▁the ▁front