If “BMW 4 Series” doesn’t ring a bell, it’s because that’s the name for the coupe version of the BMW 3 Series. For years, BMW has earned a reputation as the benchmark for everything a sports sedan should be, no matter how many doors it has. This coupe is a little lower and wider than the sedan, and to most eyes at our track, it looks sleeker and sportier.Under the hood is a 3.0-liter turbocharged inline six-cylinder engine. An eight-speed automatic is standard; a six-speed manual is a no-cost option. Ours had the manual, but given the evolved demeanor if this car, one could argue that the automatic is quite apt.