The BMW M340i Touring features turbocharged B58 3.0-liter inline six-cylinder producing 374-392 horsepower depending on model year (275-288 kW) with 48-volt mild-hybrid system generating additional 12 horsepower electric boost and 540 Nm torque through eight-speed automatic transmission and xDrive all-wheel-drive achieving 0-62 mph in 4.5 seconds with electronically limited 155 mph top speed. M Performance specification includes adaptive M suspension, M Sport differential, and performance-oriented chassis calibration in practical wagon body style combining cargo utility with sports sedan dynamics.
M340i Touring represents M Performance positioning below full M3 Competition specification while maintaining practical estate car versatility unavailable in M3 sedan-only configuration, targeting Audi S4 Avant and Mercedes-AMG C43 wagon competition through traditional BMW inline-six turbo architecture. The combination of turbocharged straight-six power delivery, xDrive all-weather capability, and wagon practicality creates compelling package for enthusiast families requiring cargo space without sacrificing performance credentials, though North American market exclusion of Touring body style reflects regional preference for SUV utility over European wagon tradition despite superior driving dynamics and similar interior volume in lower-profile package.
BMW