Keeping aside all the BMW ad-films made, I love this particular advertisement the most. The ad-films are great too, starring Clive Owen in a tight corner in each of them, but always equipped with a great looking (etc.) BMW.
Youtube video (1:01 min)
The BMW film series The Hire was a series of eight short films (each about eight minutes long) produced for the Internet in the summers of 2001 and 2002. The films were directed by renowned Hollywood and international directors. All starred Clive Owen as “The Driver”. Each film’s story highlighted the performance aspects of various BMW automobiles. (Source: The Hire (BMW films) – Wikipedia). All the eight videos are available on YouTube.