Fantastic acceleration and stopping power. Pretty slushy in normal mode, but the "sport" button makes it very responsive. Active suspension is incredible. iDrive is a great alternative to dozens of tiny buttons, and is surprisingly intuitive, as is the voice command system. Very quiet and solid-feeling. Turns heads. Main criticism is that the driver is quite isolated from the road. Interior a bit disappointing for a car in this price bracket (lots of plastic, cheap carpet).