This new sedan is not a vehicle you are ever going to buy for rational purposes. You're going to buy it because you love the way it looks and the attention it gets from all curbside spectators. You will buy it because you know that you will be able to chase down many super cars on the open highway. You will buy it because you love the look of it hunkered down over wheels so big they had to add extra lips to the rear fenders to cover them. You will buy it because it's a big, luxurious German vehicle that makes raunchier noises than its cousins on heat on full throttle, because you love the way it reminds you, every time you slam the throttle, the neck bouncing torque. Most of all, you will buy one because, with all of its contradictions, it's a product created by people that are as crazy about cars as you are, that will chase down anything simply because it's there on the tarmac.