▁notion ▁she ▁had ▁refused ▁until ▁now . ▁Best ▁Per former : ▁D iane , ▁who ▁had ▁the ▁only ▁pass ▁despite ▁Steph ane ▁co aching ▁her . ▁Wor st ▁Per former : ▁Techn ically , ▁all ▁the ▁drivers ▁( bes ides ▁D iane ) ▁were ▁as ▁bad ▁as ▁each ▁other , ▁but ▁Marg her ita ▁somehow ▁did ▁worse , ▁by ▁letting ▁her ▁emot ions ▁work ▁her ▁up ▁and ▁hit ▁a ▁car ▁on ▁nearly ▁every ▁attempt . ▁The ▁Long est ▁Re vers ing ▁Challenge ▁Ever : ▁As ▁the ▁name ▁suggests , ▁this ▁is ▁the ▁longest ▁revers ing ▁challenge ▁that ▁has ▁ever ▁been ▁featured ▁on ▁the ▁show , ▁with ▁the ▁drivers ▁having ▁to ▁back ▁up ▁a ▁B MW ▁ 5 4 0 i ▁( pre viously ▁used ▁as ▁Marg her ita ' s ▁car ▁in ▁the ▁Gas ▁Station ▁challenge ▁in ▁E pisode ▁ 5 ) ▁for ▁a ▁full ▁kilomet re ▁through ▁a ▁straight - line ▁course ▁made ▁up ▁of ▁three ▁sections ; ▁one ▁l ined ▁with ▁stack ed ▁wheel ▁r ims , ▁one ▁with ▁cars ▁and ▁one ▁with ▁p lywood ▁boxes ▁and ▁fo am ▁blocks . ▁D iane ▁takes ▁the ▁challenge ▁first ▁and ▁despite ▁knock ing ▁over ▁nine ▁wheel ▁r ims ▁during ▁a ▁sh ak y ▁start , ▁she ▁quickly ▁pick s ▁up ▁the ▁challenge ▁and ▁doesn ' t ▁hit ▁anything ▁during ▁the ▁remainder ▁of ▁the ▁course . ▁Kevin ▁follows ▁and ▁far es ▁much ▁worse , ▁sp ending ▁nearly ▁the ▁whole ▁challenge ▁looking ▁out ▁the ▁front ▁wind sh ield ▁despite ▁Len ny ▁repeatedly ▁rem inding ▁him