The 2023 BMW 4 Series 420d M Sport is a diesel hybrid car with a 2.0-litre engine and Euro 6 emission class. The M Sport trim is enhanced with the M Sport Pro Package, M Sport Brakes with Red Calipers, Sun Protection Glass, and BMW Individual Lights in Shadowline. Offering a boot space of 440 litres, this provides a practical edge over comparable vehicles, ensuring ample room for luggage, shopping, or equipment.