Question: what is the difference between bmw 5 series models?
Answer: There is a range of engine choices with the 5 Series – one for every trim, in fact. The 530i features a 248-horsepower turbo-four, while the 540i comes with a 335-horsepower turbocharged six-cylinder. Even the base engine has plenty of power, but the turbo-six delivers more potent acceleration.