BMW 3 Series GT 320d Luxury Line is the top model in the 3 Series GT lineup and the price of 3 Series GT top model is Rs. 50.69 Lakh. It gives a mileage of 21.76 kmpl. BMW 3 Series | Technical Specs, Fuel consumption, Dimensions, Power, Maximum speed, Torque, Acceleration 0 - 100 km/h, Engine displacement, Drive wheel, Tires size, Body type, Doors, Seats K3kn.