7 Difference Between Bmw 3 And 4 Series

1. The BMW 3 Series is an elegant entry-level luxury sedan. 2. Bmw 3 180-hp, 2.0L Turbocharged I-4 BMW 4 Series 248-hp, 2.0L Turbocharged I-4 3. Cargo Volume: BMW 3 13 cu ft BMW 4 15.7 cu ft 4. Sun/Moon Roof: BMW 3 Optional BMW 4 Standard 5. The 3-Series is only available as a four-door sedan while the BMW 4-Series is available as a 2-door coupe or convertible. 6. Do you prefer the look of a coupe? Go 428i. Do you need the doors of a sedan? Go 328i. 7. The 4 series is slightly more expensive.