▁ 4 - door ▁not ch back ▁sedan ▁and ▁a ▁ 2 - door ▁convert ible ▁were ▁added ▁for ▁ 1 9 9 0 . ▁ ▁Mod els ▁included ▁base ▁( l ater ▁called ▁S ), ▁SL , ▁and ▁the ▁sport y ▁International ▁Series . ▁ ▁Through out ▁its ▁run , ▁the ▁convert ible ▁was ▁considered ▁a ▁separate ▁trim ▁level . ▁ ▁International ▁Series ▁models ▁could ▁be ▁equ ipped ▁with ▁unique ▁features ▁such ▁as ▁quad ▁bucket ▁seats ▁with ▁dual ▁center ▁cons oles , ▁a ▁driver ▁information ▁system ▁and ▁a ▁heads - up ▁display . ▁ ▁A ▁very ▁rare ▁M unc ie ▁ 5 - speed ▁manual ▁transmission ▁option ▁was ▁pa ired ▁first ▁with ▁the ▁▁ 6 0 ° ▁V 6 ▁in ▁ 1 9 8 8 ▁and ▁ 1 9 8 9 . ▁ ▁In ▁ 1 9 9 0 , ▁a ▁re vised ▁Get rag ▁ 5 - speed ▁manual ▁transmission ▁option ▁was ▁available ▁for ▁the ▁high - output ▁Qu ad - 4 ▁I 4 ▁and ▁the ▁DO HC ▁▁ 6 0 ° ▁V 6 ▁in ▁ 1 9 9 1 ▁and ▁ 1 9 9 2 . ▁ ▁The ▁entire ▁line ▁was ▁rest y led ▁for ▁ 1 9 9 2 , ▁with ▁coup es ▁and ▁convert ibles ▁gain ing ▁distinct ive ▁" min i - quad " ▁head lam ps ▁shared ▁with ▁the ▁Pont iac ▁Grand ▁Prix ▁cou pe . ▁ ▁A ▁driver ' s ▁side ▁air bag ▁became ▁standard ▁in ▁ 1 9 9 4 , ▁and ▁a ▁new