The hatchback generally has more luggage space thanks to a larger trunk door opening and the ability to convert the rear of the passenger compartment into luggage space. Sedans tend to be quieter than hatchbacks, due to a more isolated rear area.
BMW 1 series and BMW 3 series have the same engine power, the torque is the same for both cars. BMW 1 series reaches 100 km/h speed 0.6 seconds faster.
Fuel consumption
Fuel consumption (l/100km):
7.3
7.3
Fuel tank capacity:
53 litres
63 litres
Full fuel tank distance:
720 km in combined cycle
860 km in combined cycle
940 km on highway
1100 km on highway
620 km with real consumption
770 km with real consumption
BMW 3 series gets more mileage on one fuel tank.
Engines
Average engine lifespan:
420'000 km
420'000 km
Engine resource depends largely on regular maintenance and the quality of the oils and fuels used.
Engine production duration:
11 years
11 years
Dimensions
Length:
4.23 m
4.52 m
Width:
1.75 m
1.82 m
Height:
1.43 m
1.42 m
BMW 1 series is smaller, but slightly higher. BMW 1 series is 29 cm shorter than the BMW 3 series, 7 cm narrower, while the height of BMW 1 series is 1 cm higher.
Trunk capacity:
330 litres
460 litres
BMW 3 series has more luggage space. BMW 1 series has 130 litres less trunk space than the BMW 3 series.
BMW 3 series has slightly fewer faults. Deffect rate in annual technical inspection is similar for both cars, it's slightly higher for BMW 1 series, so BMW 3 series quality could be a bit better.