Likes: Head-up display with road speed limit info; rev-matching downshift better than my heel-toe skills; LED headlamps (driving lamps would be a great bonus); full leather option worth it; classic BMW instrument panel; split screen for navigation/audio. Dislikes (room for improvement): can't reset default engine/suspension/steering settings--have to select M1 every time one starts up car; lacks rear middle armrest/cup holders; front air dam easily scrapes on sloped parking lot entries/exit; comfort access buttons only on two front doors (not available on rear doors like Audi's); side lane change assist non-functional at slower speeds (unlike Mercedes-Benz); top view needs a front camera; no synchronization button for HVAC; when CD ejects, it always reverts back to AM/FM radio even if satellite radio was last station played. Despite all the areas of details that would improve the luxury quotient, the sport attributes would make me select the M3 if I had to buy again!
Test drive this car before you decide to purchase one, and remember the feelings that you get while experiencing a well thought out vehicle. Because you probably will not have the same sensation from another automobile. The handling,responsiveness, and comfort is very hard to compare with other cars in its class.