Question: what is the difference between bmw f30 and f31?
Answer: What is the difference between BMW F30 and F31 or F34? ... F30 refers to the standard four-door sedan. Sharing the same platform is the F31 wagon (also known as the 3 Series Touring), and the F34 3 Series Gran Turismo, a five-door hatchback with a sloping, coupe-style fastback.