The Comparative Analysis :

ALPINA D4 Bi-Turbo Convertible Switch-Tronic (17 - 18) vs. BMW 420d Convertible (14 - 15)

€ 69,500
ALPINA D4 Bi-Turbo Convertible Switch-Tronic (17 - 18) ALPINA D4 Bi-Turbo Cabrio
€ 46,300
 BMW 420d Convertible (14 - 15) BMW 420d Cabrio
€ 69,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 46,300

ⓘ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 ALPINA D4 Bi-Turbo Cabrio is 0.1 inches longer and 0.2 inches lower.
ALPINA D4 Bi-Turbo Cabrio
BMW 420d Cabrio
54.3
Blueprint ALPINA D4 Bi-Turbo Convertible Switch-Tronic (17 - 18)
71.9
79.7
54.5
Blueprint BMW 420d Convertible (14 - 15)
71.9
79.4
71.9 in
Width
71.9 in
79.7 in
Width Incl. Mirrors
79.4 in
54.3 in
Height
54.5 in
Blueprint ALPINA D4 Bi-Turbo Convertible Switch-Tronic (17 - 18)
110.6
182.7
Blueprint BMW 420d Convertible (14 - 15)
110.6
182.6
182.7 in
Length
182.6 in
110.6 in
Wheelbase
110.6 in

Vehicle Weight

ALPINA D4 Bi-Turbo Cabrio
BMW 420d Cabrio
4167 lb
Curb Weight
3704 lb
4993 lb
Gross Vehicle
Weight
4740 lb
ALPINA D4 Bi-Turbo Convertible Switch-Tronic (17 - 18)
Weight Difference:
463 lb
11.11 %
BMW 420d Convertible (14 - 15)

General

ALPINA D4 Bi-Turbo Cabrio
BMW 420d Cabrio
F33
Generation
F33
Convertible
Car Body Style
Convertible
Diesel
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission

Engine

ALPINA D4 Bi-Turbo Cabrio
BMW 420d Cabrio
Straight-six diesel engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-four diesel engine with tur­bo­charger
Engine Series
BMW N47
N57-D30
Engine Code
N47-D20
4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
345 hp
at 4000 rpm
Power
181 hp
at 4000 rpm
ALPINA D4 Bi-Turbo Cabrio
345 hp
181 hp
BMW 420d Cabrio
516 lb‑ft
at 1500 rpm
Max. Torque
280 lb‑ft
at 1750 rpm
ALPINA D4 Bi-Turbo Cabrio
516 lb‑ft
280 lb‑ft
BMW 420d Cabrio

Performance

ALPINA D4 Bi-Turbo Cabrio
BMW 420d Cabrio
171 mph
Maximum Speed
146 mph
5 sec
Acceleration 0 to 62 mph
8.2 sec
62 mph 62
mph

226 ft
0.000 sec

ALPINA D4 Bi-Turbo Cabrio

62 mph 62
mph

374 ft
0.000 sec

BMW 420d Cabrio

▶ REPLAY
12.08 lb/hp
Weight-to-Power Ratio
20.46 lb/hp
ALPINA D4 Bi-Turbo Cabrio
12.08 lb/hp
20.46 lb/hp
BMW 420d Cabrio

Fuel Economy / Emissions

ALPINA D4 Bi-Turbo Cabrio
BMW 420d Cabrio
Fuel Economy
40 mpg
combined
46 mpg
ALPINA D4 Bi-Turbo Cabrio
40 mpg
46 mpg
BMW 420d Cabrio
36 mpg
city
39 mpg
No data
highway
No data
Kraftstoffanzeige
15.9 gal
Fuel Tank Capacity
15.1 gal
Kraftstoffanzeige
632 mi
Range
695 mi
ALPINA D4 Bi-Turbo Cabrio
632 mi
695 mi
BMW 420d Cabrio
Environmental Impact
121.3 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).
104.9 kWh
ALPINA D4 Bi-Turbo Cabrio
121.3 kWh
104.9 kWh
BMW 420d Cabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
249 g/mi (NEFZ)
CO2 Emissions
214 g/mi (NEFZ)

Practical Convenience

ALPINA D4 Bi-Turbo Cabrio
BMW 420d Cabrio
2
Doors
2
4
No. of Seats
4
827 lb
Maximum Payload
1036 lb
10.5 cu ft
Trunk Volume
10.5 cu ft
No data
Cargo Volume (Seats Down)
No data