The Comparative Analysis :
BMW 420d Cabrio (17 - 19) vs. ALPINA D4 Bi-Turbo Cabrio Switch-Tronic (14 - 17)
€ 51,700
€ 65,700
€ 51,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 65,700
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
Тhere is barely any difference in dimensions between the two vehicles. Both cars are the same width, but the BMW 420d Cabrio is 0.2 cm shorter and 0.6 cm taller.
BMW 420d Cabrio
ALPINA D4 Bi-Turbo Cabrio
1384
1825
2017
1378
1825
2025
1825 mm
Width
1825 mm
2017 mm
Width Incl. Mirrors
2025 mm
1384 mm
Height
1378 mm
2810
4638
2810
4640
4638 mm
Length
4640 mm
2810 mm
Wheelbase
2810 mm
Vehicle Weight
BMW 420d Cabrio
ALPINA D4 Bi-Turbo Cabrio
1825 kg
Kerb Weight
1890 kg
2215 kg
Gross Vehicle
Weight
Weight
2265 kg
Weight Difference:
65 kg
3.44 %
General
BMW 420d Cabrio
ALPINA D4 Bi-Turbo Cabrio
F33
Generation
F33
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Diesel
Rear-wheel drive
Drive
Rear-wheel drive
6-speed manual transmission
Transmission
8-speed automatic transmission
Engine
BMW 420d Cabrio
ALPINA D4 Bi-Turbo Cabrio
Straight-four diesel engine with turbocharger
Engine Type
Straight-six diesel engine with two turbochargers (biturbo)
BMW B47
Engine Series
B47-D20
Engine Code
N57-D30
4
Valves
4
4
Cylinders
6
1995 CC
Engine Capacity
2993 CC
187 bhp
at 4000 rpm
Power
345 bhp
at 4000 rpm
BMW 420d Cabrio
187 bhp
345 bhp
ALPINA D4 Bi-Turbo Cabrio
400 NM
at 1750 rpm
Max. Torque
700 NM
at 1500 rpm
BMW 420d Cabrio
400 NM
700 NM
ALPINA D4 Bi-Turbo Cabrio
Performance
BMW 420d Cabrio
ALPINA D4 Bi-Turbo Cabrio
146 mph
Maximum Speed
171 mph
8.2 sec
Acceleration 0 to 62 mph
5 sec
62 mph
62
mph
mph
114 m
0.000 sec
BMW 420d Cabrio
62 mph
62
mph
mph
69 m
0.000 sec
ALPINA D4 Bi-Turbo Cabrio
▶ REPLAY
9.76 kg/bhp
Weight-to-Power Ratio
5.48 kg/bhp
BMW 420d Cabrio
9.76 kg/bhp
5.48 kg/bhp
ALPINA D4 Bi-Turbo Cabrio
Fuel Economy / Emissions
BMW 420d Cabrio
ALPINA D4 Bi-Turbo Cabrio
Fuel Economy
55 mpg
combined
48 mpg
BMW 420d Cabrio
55 mpg
48 mpg
ALPINA D4 Bi-Turbo Cabrio
46 mpg
city
43 mpg
No data
motorway
No data
57 L
Fuel Tank Capacity
60 L
695 mi
Range
632 mi
BMW 420d Cabrio
695 mi
632 mi
ALPINA D4 Bi-Turbo Cabrio
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).
121.3 kWh
BMW 420d Cabrio
104.9 kWh
121.3 kWh
ALPINA D4 Bi-Turbo Cabrio
Euro 6c (WLTP)
Emission Standard
Euro 6b (NEFZ)
154 g/km (WLTP)
CO2 Emissions
156 g/km (NEFZ)
Practical Convenience
BMW 420d Cabrio
ALPINA D4 Bi-Turbo Cabrio
2
Doors
2
4
No. of Seats
4
390 kg
Maximum Payload
375 kg
370 L
Boot Capacity
370 L
No data
Boot Capacity (Seats Down)
No data
