The turbocharged 2.0 L four - cylinder is becoming almost common among automakers, and BMW's
TwinPower contribution, while well matched to the crossover, is hardly the last word in performance.
The integration of the turbocharger into the exhaust manifold also makes a significant
contribution to the highly efficient power optimization provided by M Performance
TwinPower Turbo technology in the new 6 cylinder inline engine in the new BMW X4 M40i.