New BMW 4 Series offers style and fun. Can it conquer rivals? The BMW 3 Series Coupe has always bridged the difference between glossy sports car and sober-appropriate saloon. As a result, it's traditionally been seen as a rakish two-door saloon rather than an attention-grabbing coupe. However, that is all set to change using the newest version, which includes a brand new name -- 4 Series -- and a