2018 BMW 3 Series Hybrid Engine, Transmission, and Fuel Economy. The 3-Series has a unique line up of 4 cylinders turbocharged engines. The 3.0 liter inline 6 in the 340i models, 2.0 liter in 320i model, 2.0-liter turbodiesel in the 330i model and a twin turbo engine in the M3 version with 425 horsepower.
Engines 2018-2019 BMW Coupe 4 . Novelty comes in versions 420i, 420d, 428i, 430d, 435d, 435i. 2018-2019 BMW 435i Coupe is equipped with in-line 6-cylinder petrol engine in volume of 3 liters, developing 306 l / s of power and 400 Nm of torque.