ar ▁weight ▁distribution ▁of ▁ 4 5 : 5 5 . ▁power ed ▁by ▁a ▁ 1 . 3 ▁liter ▁G 1 3 A ▁engine ▁from ▁the ▁Cult us . ▁ ▁This ▁was ▁followed ▁up ▁by ▁the ▁T ats umi ▁F uk un aga ▁designed ▁R S / 3 , ▁un ve iled ▁for ▁the ▁ 1 9 8 7 ▁Tokyo ▁Motor ▁Show , ▁retain ing ▁many ▁of ▁its ▁design ▁features ▁of ▁the ▁prede cess or ▁but ▁many ▁of ▁its ▁design ▁features ▁were ▁worked ▁on ▁to ▁meet ▁Japanese ▁safety ▁reg ulations ▁as ▁well ▁as ▁being ▁a ▁practical ▁sports ▁car . ▁Unfortunately , ▁the ▁project ▁was ▁abandoned ▁in ▁favor ▁of ▁the ▁road ster ▁project ▁they ▁had ▁been ▁working ▁on , ▁named ▁later ▁as ▁the ▁C app u cc ino . ▁ ▁Maz da ' s ▁design ▁team , ▁led ▁by ▁T osh iko ▁H ira i , ▁who ▁was ▁also ▁responsible ▁for ▁the ▁M X - 5 , ▁took ▁over ▁the ▁design ▁project , ▁despite ▁having ▁a ▁limited ▁ ▁budget ▁and ▁capacity . ▁ ▁Maz da ▁pro tot ypes ▁The ▁red es igned ▁cars , ▁constructed ▁in ▁t ube ▁frame ▁with ▁flo ors ▁and ▁bulk head s ▁constructed ▁from ▁al umin ium ▁h oney comb , ▁cl ad ▁in ▁three ▁different ▁body ▁styles ▁constructed ▁in ▁fi berg lass . ▁The ▁cars ▁were ▁constructed ▁around ▁the ▁Ke i ▁car ▁reg ulation ▁of ▁the ▁time ▁( maxim um ▁length ▁, ▁maximum ▁engine ▁capacity ▁ 5 5 0 ▁cc ), ▁until ▁this ▁was ▁changed ▁for ▁the ▁following