The Comparative Analysis :
SEAT Leon 1.8 TSI (16 - 18) vs. BMW 123d Automatic (07 - 12)
€ 25,500

€ 34,200

€ 25,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 34,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The SEAT Leon 1.8 TSI Start&Stop is slightly bigger in every dimension. It's 4.3 cm longer, 6.8 cm wider and 3.8 cm taller than the BMW 123d.
SEAT Leon 1.8 TSI Start&Stop
BMW 123d
1459
1816
1975
1421
1748
1934
1816 mm
Width
1748 mm
1975 mm
Width Incl. Mirrors
1934 mm
1459 mm
Height
1421 mm
2636
4282
2660
4239
4282 mm
Length
4239 mm
2636 mm
Wheelbase
2660 mm
Vehicle Weight
SEAT Leon 1.8 TSI Start&Stop
BMW 123d
1310 kg
Kerb Weight
1485 kg
1830 kg
Gross Vehicle
Weight
Weight
1910 kg

Weight Difference:
175 kg
11.78 %

General
SEAT Leon 1.8 TSI Start&Stop
BMW 123d
5F
Generation
E81
Hatchback
Car Body Style
Hatchback
Unleaded (95 RON)
Fuel Type
Diesel

Front-wheel drive
Drive
Rear-wheel drive

6-speed manual transmission
Transmission
6-speed automatic transmission
Engine
SEAT Leon 1.8 TSI Start&Stop
BMW 123d
Straight-four petrol engine with turbocharger
Engine Type
Straight-four diesel engine with two turbochargers (biturbo)
Engine Series
BMW
4
Valves
4
4
Cylinders
4
1798 CC
Engine Capacity
1995 CC
178 bhp
at 5100 rpm
Power
201 bhp
at 4400 rpm
SEAT Leon 1.8 TSI Start&Stop
178 bhp
201 bhp
BMW 123d
250 NM
at 1250 rpm
Max. Torque
400 NM
at 2000 rpm
SEAT Leon 1.8 TSI Start&Stop
250 NM
400 NM
BMW 123d
Performance
SEAT Leon 1.8 TSI Start&Stop
BMW 123d
140 mph
Maximum Speed
147 mph
7.5 sec
Acceleration 0 to 62 mph
7 sec
62 mph
62
mph
mph
104 m
0.000 sec

SEAT Leon 1.8 TSI Start&Stop
62 mph
62
mph
mph
97 m
0.000 sec

BMW 123d
▶ REPLAY
7.36 kg/bhp
Weight-to-Power Ratio
7.39 kg/bhp
SEAT Leon 1.8 TSI Start&Stop
7.36 kg/bhp
7.39 kg/bhp
BMW 123d
Fuel Economy / Emissions
SEAT Leon 1.8 TSI Start&Stop
BMW 123d
Fuel Economy
47 mpg
combined
51 mpg
SEAT Leon 1.8 TSI Start&Stop
47 mpg
51 mpg
BMW 123d
38 mpg
city
41 mpg
55 mpg
motorway
No data
50 L
Fuel Tank Capacity
51 L
518 mi
Range
576 mi
SEAT Leon 1.8 TSI Start&Stop
518 mi
576 mi
BMW 123d
Environmental Impact
113.6 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).
113.1 kWh
SEAT Leon 1.8 TSI Start&Stop
113.6 kWh
113.1 kWh
BMW 123d
Euro 6b (NEFZ)
Emission Standard
Euro 5
138 g/km (NEFZ)
CO2 Emissions
145 g/km (NEFZ)
Practical Convenience
SEAT Leon 1.8 TSI Start&Stop
BMW 123d
5
Doors
3
5
No. of Seats
4
520 kg
Maximum Payload
425 kg
380 L
Boot Capacity
330 L







1210 L
Boot Capacity (Seats Down)
1150 L