The original compact executive sedan is BMW's most important car. The 3 Series, now on its 40th year, continues to be the benchmark among all the other cars in its class. The 3 Series caters to a wide audience starting from the fuel-efficient 318d to the brisk 328i. Also available is the 320d, mixing a good blend of power and economy. BMW also offers a larger 3 Series called the Gran Turismo that mixes the practicalities of a wagon and the dynamics of a sedan all in one car.