BMW's are proficient in all.
When it comes to performance and reliability, I believe it is safe to say BMW is among the top companies who ensure that their products are both great performers and reliable. I have not had any problems with my car that were not sell inflicted, meaning my 18 year old car has never acted out of the norm without a logical reason (I. E. Not starting due to an old battery). Comfort is also a feature luxury cars like BMW excels in. I could always use more features, like heated seats but you get what you pay for.