To simplify the lives of its customers, BMW recently divided the 3 Series into two, placing the coupé, cabriolet and a hatchback version in a separate category—the 4 Series. Whether you choose the 2.0-litre 241-horsepower 4-cylinder turbo or the 3.0-litre 300-horsepower turbo, you'll get a top-notch machine. And we haven’t even mentioned the BMW M4 that defies convention with 425 horsepower.