FM ▁radio ▁with ▁a ▁CD ▁player ▁and ▁B ose ▁speak ers , ▁as ▁well ▁as ▁X M ▁Sat ellite ▁Radio , ▁and ▁On Star . ▁Home Link ▁was ▁standard ▁as ▁well . ▁All ▁Sa ab ▁ 9 - 7 X ▁vehicles ▁came ▁with ▁all - w heel ▁drive ▁as ▁standard ▁equipment . ▁A ▁touch screen ▁navigation ▁system ▁was ▁available ▁as ▁an ▁optional ▁feature . ▁ ▁For ▁the ▁model ▁year ▁of ▁ 2 0 0 6 , ▁the ▁Linear ▁trim ▁level ▁was ▁renamed ▁as ▁the ▁ 4 . 2 i , ▁and ▁the ▁Arc ▁trim ▁level ▁was ▁renamed ▁as ▁the ▁ 5 . 3 i . ▁The ▁ 4 . 2 i ▁trim ▁level ▁comes ▁with ▁the ▁ 4 . 2 ▁L ▁inline ▁six ▁engine , ▁and ▁was ▁r ated ▁at ▁ ▁and ▁ ▁of ▁tor que . ▁The ▁ 5 . 3 ▁L ▁V 8 ▁engine ▁was ▁r ated ▁at ▁an ▁estimated ▁ ▁and ▁ ▁of ▁tor que . ▁ ▁The ▁Sa ab ▁ 9 - 7 X ▁equ ipped ▁with ▁the ▁V 8 ▁engine ▁has ▁the ▁cap ability ▁to ▁to w ▁up ▁to ▁. ▁ ▁For ▁the ▁model ▁year ▁of ▁ 2 0 0 8 , ▁the ▁new ▁A ero ▁trim ▁level ▁was ▁added ▁as ▁a ▁more ▁lux ur ious ▁version ▁of ▁the ▁Che v ro let ▁Tra il bla zer ▁SS . ▁Both ▁the ▁Sa ab ▁ 9 - 7 X ▁A ero ▁and ▁the ▁Che v ro let ▁Tra il bla zer ▁SS ▁came ▁with ▁the ▁ 6 . 0