BMW 3 series 2015 vs BMW 4 series 2017

 
BMW 3 series
2015 - 2018
BMW 4 series
2017 -
Gearbox: AutomaticAutomatic
Engine: 1.5 Petrol2.0 Petrol
Camshaft drive: Timing chainTiming chain

Performance

Power: 136 HP184 HP
Torque: 220 NM270 NM
Acceleration 0-100 km/h: 9.1 seconds7.7 seconds
BMW 4 series is a more dynamic driving.
BMW 3 series engine produces 48 HP less power than BMW 4 series, whereas torque is 50 NM less than BMW 4 series. Due to the lower power, BMW 3 series reaches 100 km/h speed 1.4 seconds later.

Fuel consumption

Fuel consumption (l/100km): 5.45.5
Real fuel consumption: 7.5 l/100km8.0 l/100km
The BMW 3 series is a better choice when it comes to fuel economy.
By specification BMW 3 series consumes 0.1 litres less fuel per 100 km than the BMW 4 series, which means that by driving the BMW 3 series over 15,000 km in a year you can save 15 litres of fuel.
By comparing actual fuel consumption based on user reports, BMW 3 series consumes 0.5 litres less fuel per 100 km than the BMW 4 series.
Fuel tank capacity: 60 litres60 litres
Full fuel tank distance: 1110 km in combined cycle1090 km in combined cycle
1300 km on highway1330 km on highway
800 km with real consumption750 km with real consumption
Read the article "Fuel Efficiency: How to Reduce Fuel Consumption" to learn more about fuel economy.

Engines

Average engine lifespan: 350'000 km320'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration: 13 years12 years
Engine spread: Installed on at least 5 other car models, including BMW 1 sērija, BMW X1, BMW 2 sērija, BMW 4 sērijaInstalled on at least 2 other car models, including BMW 5 sērija, BMW 2 sērija
In general, the longer and for more car models an engine is produced, the better its serviceability and availability of spare parts. BMW 3 series might be a better choice in this respect.
BMW 3 sērija 2015 1.5 engine: The B38 1.5-liter three-cylinder petrol engine, introduced in 2013, was designed with a focus on fuel efficiency and low emissions to meet modern environmental standards. While it received generally positive ...  More about BMW 3 sērija 2015 1.5 engine 

BMW 4 sērija 2017 2.0 engine: Compared to their predecessors, B48 engines are more robust and less prone to major failures. They are well-suited for chip tuning, which can noticeably enhance performance and responsiveness without ...  More about BMW 4 sērija 2017 2.0 engine 

Dimensions

Length: 4.63 m4.64 m
Width: 1.81 m1.83 m
Height: 1.43 m1.39 m
BMW 3 series is smaller, but slightly higher.
BMW 3 series and BMW 4 series are practically the same length.
Trunk capacity: 480 litres480 litres
Turning diameter: 11.3 meters11.3 meters
Gross weight (kg): 2`0002`100
Safety: no data
Quality:
below average
no data
Average price (€): 22 20033 400
Pros and Cons: BMW 3 sērija has
  • lower fuel consumption
  • longer expected engine lifespan
  • lower price
BMW 4 sērija has
  • more power
  • more dynamic
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