Every luxury coupe has to answer the same question: Is the 4-Series handsome enough and daring enough to be steered away from the sedan on which it's based (in this case, the esteemed 3-Series sport sedan)? The answer isn't entirely clear here.
The shape of the 2015 BMW 4-Series reminds us of the old 8-Series, and past 3-Series coupes as well. The rear roofline's kink is classic BMW, the side sculpting not so deeply gouged. It's more elegant, like a Regal or an F-Type or-shut your mouth-a Mustang.
At the front, the 4-Series gets downright adventurous, with all its huge air intakes and a low roofline. The glass-to-metal ratio is spot-on, the stance still decathlete, and the shoulder line still creased like a great dry cleaner had the final say.
Inside, the 4-Series leaps forward from the 3er coupe past. The appealing driver setup gets walled off by arcs of wood and plastic and metal. The cockpit sweeps organically around the driver smartly, and more handsomely than it does in the 3-Series or in some rivals.
The 4-Series' cockpit tends to get dominated by the wide, bright screen that rides on the dash permanently--where you expect it might tuck itself away-and by the much larger iDrive control knob-but you can ease that clash by applying certain trim packages. Sport cars have blacked-out details and red accents, while Luxury models have polished wood trim and Modern coupes wear grey or black leather and satin-metal and wood trim.