The Comparative Analysis :
SEAT Leon SC 1.4 TSI ACT (14 - 16) vs. BMW 123d (07 - 12)
€ 21,600

€ 32,100

€ 21,600
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 32,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ a little. The SEAT Leon SC 1.4 TSI ACT Start&Stop is 0.4 inches shorter, 2.4 inches wider and an inch taller than the BMW 123d.
SEAT Leon SC 1.4 TSI ACT Start&Stop
BMW 123d
56.9
71.3
77.8
55.9
68.8
76.1
71.3 in
Width
68.8 in
77.8 in
Width Incl. Mirrors
76.1 in
56.9 in
Height
55.9 in
102.4
166.5
104.7
166.9
166.5 in
Length
166.9 in
102.4 in
Wheelbase
104.7 in
Vehicle Weight
SEAT Leon SC 1.4 TSI ACT Start&Stop
BMW 123d
2696 lb
Curb Weight
3274 lb
3836 lb
Gross Vehicle
Weight
Weight
4211 lb

Weight Difference:
578 lb
17.65 %

General
SEAT Leon SC 1.4 TSI ACT Start&Stop
BMW 123d
5F
Generation
E81
Hatchback
Car Body Style
Hatchback
Mid-Grade Unleaded
Fuel Type
Diesel

Front-wheel drive
Drivetrain
Rear-wheel drive

6-speed manual transmission
Transmission
6-speed manual transmission
Engine
SEAT Leon SC 1.4 TSI ACT Start&Stop
BMW 123d
Straight-four gasoline engine with turbocharger
Engine Type
Straight-four diesel engine with two turbochargers (biturbo)
Engine Series
BMW
4
Valves
4
4
Cylinders
4
1.4 L / 69 cu in
Displacement
2 L / 98 cu in
148 hp
at 5000 rpm
Power
201 hp
at 4400 rpm
SEAT Leon SC 1.4 TSI ACT Start&Stop
148 hp
201 hp
BMW 123d
184 lb‑ft
at 1500 rpm
Max. Torque
295 lb‑ft
at 2000 rpm
SEAT Leon SC 1.4 TSI ACT Start&Stop
184 lb‑ft
295 lb‑ft
BMW 123d
Performance
SEAT Leon SC 1.4 TSI ACT Start&Stop
BMW 123d
134 mph
Maximum Speed
148 mph
7.9 sec
Acceleration 0 to 62 mph
6.9 sec
62 mph
62
mph
mph
361 ft
0.000 sec

SEAT Leon SC 1.4 TSI ACT Start&Stop
62 mph
62
mph
mph
315 ft
0.000 sec

BMW 123d
▶ REPLAY
18.22 lb/hp
Weight-to-Power Ratio
16.29 lb/hp
SEAT Leon SC 1.4 TSI ACT Start&Stop
18.22 lb/hp
16.29 lb/hp
BMW 123d
Fuel Economy / Emissions
SEAT Leon SC 1.4 TSI ACT Start&Stop
BMW 123d
Fuel Economy
50 mpg
combined
46 mpg
SEAT Leon SC 1.4 TSI ACT Start&Stop
50 mpg
46 mpg
BMW 123d
41 mpg
city
37 mpg
56 mpg
highway
No data
13.2 gal
Fuel Tank Capacity
13.5 gal
661 mi
Range
621 mi
SEAT Leon SC 1.4 TSI ACT Start&Stop
661 mi
621 mi
BMW 123d
Environmental Impact
89 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).
104.9 kWh
SEAT Leon SC 1.4 TSI ACT Start&Stop
89 kWh
104.9 kWh
BMW 123d
Euro 6b (NEFZ)
Emission Standard
Euro 5
175 g/mi (NEFZ)
CO2 Emissions
217 g/mi (NEFZ)
Practical Convenience
SEAT Leon SC 1.4 TSI ACT Start&Stop
BMW 123d
3
Doors
3
5
No. of Seats
4
1140 lb
Maximum Payload
937 lb
10.8 cu ft
Trunk Volume
9.3 cu ft







32.6 cu ft
Cargo Volume (Seats Down)
32.6 cu ft