Whakakīhia te rerenga e whai ake nei: I te tau 1951 hoki, i whakarerekēhia e B. Bira tana '49-spec 4CLT kia whakaae ki tetahi miihini V12 OSCA kaha ake,, e kaha ana te manawa. I whakawhanakehia tēnei pūkaha huri noa. Na reira i wikitoria a Bira i te whakataetae o Goodwood i te timatanga o te tau, engari i tana putanga kotahi o te Whakataetae o te Ao, i te
1951 Spanish Grand Prix, ka mutu i te porowhita tuatahi.