The Comparative Analysis :
BMW 123d (07 - 12) vs. SEAT Leon 1.4 TSI (12 - 14)
€ 32,100
€ 21,200
€ 32,100
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 21,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 123d is slightly smaller in every dimension. It's 2.4 cm shorter, 6.8 cm narrower and 3.8 cm lower than the SEAT Leon 1.4 TSI Start&Stop.
BMW 123d
SEAT Leon 1.4 TSI Start&Stop
1421
1748
1934
1459
1816
1975
1748 mm
Width
1816 mm
1934 mm
Width Incl. Mirrors
1975 mm
1421 mm
Height
1459 mm
2660
4239
2636
4263
4239 mm
Length
4263 mm
2660 mm
Wheelbase
2636 mm
Vehicle Weight
BMW 123d
SEAT Leon 1.4 TSI Start&Stop
1485 kg
Kerb Weight
1231 kg
1910 kg
Gross Vehicle
Weight
Weight
1720 kg
Weight Difference:
254 kg
17.1 %
General
BMW 123d
SEAT Leon 1.4 TSI Start&Stop
E81
Generation
5F
Hatchback
Car Body Style
Hatchback
Diesel
Fuel Type
Unleaded (95 RON)

Rear-wheel drive
Drive
Front-wheel drive

6-speed manual transmission
Transmission
6-speed manual transmission
Engine
BMW 123d
SEAT Leon 1.4 TSI Start&Stop
Straight-four diesel engine with two turbochargers (biturbo)
Engine Type
Straight-four petrol engine with turbocharger
BMW
Engine Series
4
Valves
4
4
Cylinders
4
1995 CC
Engine Capacity
1395 CC
201 bhp
at 4400 rpm
Power
138 bhp
at 4500 rpm
BMW 123d
201 bhp
138 bhp
SEAT Leon 1.4 TSI Start&Stop
400 NM
at 2000 rpm
Max. Torque
250 NM
at 1500 rpm
BMW 123d
400 NM
250 NM
SEAT Leon 1.4 TSI Start&Stop
Performance
BMW 123d
SEAT Leon 1.4 TSI Start&Stop
148 mph
Maximum Speed
131 mph
6.9 sec
Acceleration 0 to 62 mph
8.2 sec
62 mph
62
mph
mph
96 m
0.000 sec
BMW 123d
62 mph
62
mph
mph
114 m
0.000 sec
SEAT Leon 1.4 TSI Start&Stop
▶ REPLAY
7.39 kg/bhp
Weight-to-Power Ratio
8.92 kg/bhp
BMW 123d
7.39 kg/bhp
8.92 kg/bhp
SEAT Leon 1.4 TSI Start&Stop
Fuel Economy / Emissions
BMW 123d
SEAT Leon 1.4 TSI Start&Stop
Fuel Economy
55 mpg
combined
54 mpg
BMW 123d
55 mpg
54 mpg
SEAT Leon 1.4 TSI Start&Stop
44 mpg
city
44 mpg
No data
motorway
63 mpg
51 L
Fuel Tank Capacity
50 L
621 mi
Range
598 mi
BMW 123d
621 mi
598 mi
SEAT Leon 1.4 TSI Start&Stop
Environmental Impact
104.9 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
98.5 kWh
BMW 123d
104.9 kWh
98.5 kWh
SEAT Leon 1.4 TSI Start&Stop
Euro 5
Emission Standard
Euro 5
135 g/km (NEFZ)
CO2 Emissions
119 g/km (NEFZ)
Practical Convenience
BMW 123d
SEAT Leon 1.4 TSI Start&Stop
3
Doors
5
4
No. of Seats
5
425 kg
Maximum Payload
489 kg
330 L
Boot Capacity
380 L







1150 L
Boot Capacity (Seats Down)
1210 L












