Surfeit certainly not harm. Although the B12 6.0 weighs more than two tons, the almost megalomaniac 6.0 liter twelve-cylinder makes mincemeat of the standard sprint 0-60 mph. In 5.9 seconds, and he will not stop until the 180 mph is reached. Extra bonus: the B12 is based on perhaps the most beautiful 7 Series that BMW has ever made. The beautifully E38.