I am a 44 year old male and drive a 2007 BMW 328i.  It is a nice car with great acceleration and style, the audio system is great quality with high volume if you like it loud.  The downside to the car is it is not very roomy, as an owner for a few years it is tight, almost too small.    It really rides nice, you know you are in a luxury vehicle when you are cruising on the highway and handling is great.  I recommend the 2007 BMW 328i overall but definitely not for a family that needs any room.  The 328i is all about style and less about basic utility.  For the young and single, it is a great car.