The car is wonderful when youre just cruising, it makes a little purr but when you put it in the sport mode and accelerates, its extremely loud. When the roof is up it doesnt make too much noise. And with the roof down it doesn't make those annoying noises that other cabriolets make. The interior is very elegant with its ambient lighting.
The loud noise the car makes. The good iDrive controller that is good and more comfortable to use because it is like a mouse that you use for a computer. The light emitting diodes in the taillights, which are instant and bright. The dynamic xenon headlights, which swivel to light around a corner.