▁The ▁car ▁also ▁received ▁an ▁upgrad ed ▁exhaust ▁and ▁a ▁re - des igned ▁int ake . ▁These ▁power ▁up gr ades ▁led ▁to ▁a ▁factory ▁rating ▁of ▁, ▁a ▁gain ▁of ▁five ▁horse power ▁over ▁the ▁standard ▁GT . ▁On ▁the ▁exterior , ▁the ▁car ▁received ▁unique ▁Tor q - T hr ust ▁style ▁whe els , ▁removal ▁of ▁the ▁fog ▁lights ▁for ▁the ▁US ▁market , ▁but ▁standard ▁for ▁Canada ▁and ▁rear ▁deck ▁spo iler , ▁as ▁well ▁as ▁new ▁trim ▁acc ents . ▁▁ ▁The ▁success ▁of ▁the ▁ 2 0 0 1 ▁Bull itt ▁led ▁to ▁the ▁production ▁of ▁a ▁second ▁special ▁edition , ▁the ▁ 2 0 0 3 ▁to ▁ 2 0 0 4 ▁Mach ▁ 1 . ▁The ▁Mach ▁ 1 ▁was ▁equ ipped ▁with ▁a ▁ 4 . 6   L ▁DO HC ▁ ▁engine ▁based ▁on ▁the ▁engine ▁available ▁in ▁the ▁ 1 9 9 9 ▁and ▁ 2 0 0 1 ▁Must ang ▁Cob ras , ▁with ▁new ▁cyl inder ▁heads ▁from ▁the ▁ 2 0 0 3 ▁to ▁ 2 0 0 4 ▁Cob ra ▁( see ▁above ). ▁The ▁interior ▁of ▁the ▁car ▁was ▁given ▁a ▁retro ▁theme ▁with ▁seats ▁made ▁to ▁look ▁like ▁the ▁" com fort - we ave " ▁seats ▁available ▁in ▁the ▁ 1 9 6 0 s - era ▁Mach ▁ 1 s . ▁It ▁also ▁featured ▁retro ▁them ed ▁gau ges ▁and ▁a ▁unique ▁al umin um ▁sh if ter ▁ball . ▁On ▁the ▁vehicle