BMW's 3 Series have for decades been the company's best-selling models, defying market swings towards hatchbacks, and more recently, SUVs.
The tight, balanced and responsive driving habits of the car have been the main reason for its success through six successive models over four decades, and the medium-sized four-door saloon continues to defy market trends.
One of the reasons may be its practicality.
The BMW 320d Sport Edition is Driven's long-term test car, which we are testing over three months. The aim has been to find out just how practical the medium-sized sports sedan is during everyday use.