BMW B58

The BMW B58 is a turbocharged straight-six engine that began production in 2015, replacing the N55 and launching in the F30 340i. It belongs to the modular BMW engine family in which each engine has 500 cc per cylinder, following the B38 and B48. Against the N55 it has a 20 percent higher boost pressure, a closed-deck block, a compression ratio raised to 11.0:1 and a displacement up from 2,979 to 2,998 cc, at a cost of 8 kilograms. It uses a twin-scroll turbocharger with a water-to-air intercooler built into the intake plenum, direct injection, double-VANOS and Valvetronic, a 7,000 rpm redline and a bore and stroke of 82 by 94.6 millimetres. It was named to Wards World 10 Best Engines five times, and the S58 is its high-performance version.