Thanks!
The tires are Michelin Pilot Sport All-Season tires. I absolutely love them. Unbelievably expensive, but well worth it.
The summer equivalent of these (Pilot Sport, or Pilot Sport Exalto) are also excellent tires. My brother's 330Ci came with Pilot Sport's on it, and he cannot say enough about them.
In addition, my grandma puts Pilot Sport's on her Porsche 911, and loves them! Michelin did something right with this tire, that's for sure.