▁ 3 4 0 i . ▁ ▁The ▁B 5 8 ▁is ▁part ▁of ▁B MW ' s ▁new ▁mod ular ▁engine ▁family ▁- ▁each ▁engine ▁using ▁a ▁disp lacement ▁of ▁ ▁per ▁cyl inder ▁- ▁following ▁the ▁B 3 8 ▁and ▁B 4 8 ▁engine . ▁▁ ▁In ▁ 2 0 1 6 , ▁the ▁B 5 8 ▁( installed ▁in ▁the ▁ 3 4 0 i ) ▁to pped ▁Ward ' s ▁ 1 0 ▁Best ▁Eng ines ▁list . ▁It ▁was ▁included ▁again ▁the ▁next ▁year ▁( installed ▁in ▁the ▁M 2 4 0 i ), ▁for ▁the ▁third ▁time ▁in ▁ 2 0 1 9 ▁( installed ▁in ▁the ▁X 5 ▁ 4 0 i ) ▁and ▁for ▁the ▁fourth ▁time ▁in ▁ 2 0 2 0 ▁( installed ▁in ▁the ▁newer ▁G 2 0 - gener ation ▁M 3 4 0 i ). ▁ ▁The ▁S 5 8 ▁engine , ▁which ▁was ▁released ▁in ▁early ▁ 2 0 1 9 , ▁is ▁the ▁high ▁performance ▁version ▁of ▁the ▁B 5 8 . ▁ ▁Design ▁Comp ared ▁with ▁its ▁B MW ▁N 5 5 ▁prede cess or , ▁the ▁B 5 8 ▁features ▁a ▁ 2 0 % ▁increase ▁in ▁boost ▁pressure , ▁a ▁closed - deck ▁engine ▁block ▁design , ▁an ▁increase ▁in ▁compression ▁ratio ▁to ▁ 1 1 . 0 : 1 ▁and ▁a ▁slight ▁increase ▁in ▁disp lacement ▁from ▁ ▁with ▁added ▁weight ▁of ▁. ▁ ▁The ▁inter co ol er ▁- ▁a ▁water - to