The Comparative Analysis :

ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18) vs. BMW 420i Coupé (17 - ..)

€ 75,300
ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18) ALPINA B4 S Bi-Turbo Coupé
€ 41,300
 BMW 420i Coupé (17 - ..) BMW 420i Coupé
€ 75,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 41,300

ⓘ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 B4 S Bi-Turbo Coupé is 0.2 cm longer and 0.4 cm lower.
ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
1373
Blueprint ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18)
1825
2025
1377
Blueprint BMW 420i Coupé (17 - ..)
1825
2017
1825 mm
Width
1825 mm
2025 mm
Width Incl. Mirrors
2017 mm
1373 mm
Height
1377 mm
Blueprint ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18)
2810
4640
Blueprint BMW 420i Coupé (17 - ..)
2810
4638
4640 mm
Length
4638 mm
2810 mm
Wheelbase
2810 mm

Vehicle Weight

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
1690 kg
Kerb Weight
1550 kg
2135 kg
Gross Vehicle
Weight
1995 kg
ALPINA B4 S Bi-Turbo Coupé Switch-Tronic (17 - 18)
Weight Difference:
140 kg
8.28 %
BMW 420i Coupé (17 - ..)

General

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
F32
Generation
F32
Coupe
Car Body Style
Coupe
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Rear-wheel drive
Drive
Rear-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission

Engine

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
Straight-six petrol engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-four petrol engine with tur­bo­charger
Engine Series
BMW B48
N55-B30
Engine Code
B48-B20
4
Valves
4
6
Cylinders
4
2979 CC
Engine Capacity
1998 CC
434 bhp
at 5500 rpm
Power
181 bhp
at 5000 rpm
ALPINA B4 S Bi-Turbo Coupé
434 bhp
181 bhp
BMW 420i Coupé
660 NM
at 3000 rpm
Max. Torque
270 NM
at 1350 rpm
ALPINA B4 S Bi-Turbo Coupé
660 NM
270 NM
BMW 420i Coupé

Performance

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
190 mph
Maximum Speed
147 mph
4.2 sec
Acceleration 0 to 62 mph
7.3 sec
62 mph 62
mph

58 m
0.000 sec

ALPINA B4 S Bi-Turbo Coupé

62 mph 62
mph

101 m
0.000 sec

BMW 420i Coupé

▶ REPLAY
3.89 kg/bhp
Weight-to-Power Ratio
8.56 kg/bhp
ALPINA B4 S Bi-Turbo Coupé
3.89 kg/bhp
8.56 kg/bhp
BMW 420i Coupé

Fuel Economy / Emissions

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
Fuel Economy
36 mpg
combined
44 mpg
ALPINA B4 S Bi-Turbo Coupé
36 mpg
44 mpg
BMW 420i Coupé
26 mpg
city
34 mpg
No data
motorway
No data
Kraftstoffanzeige
60 L
Fuel Tank Capacity
60 L
Kraftstoffanzeige
472 mi
Range
583 mi
ALPINA B4 S Bi-Turbo Coupé
472 mi
583 mi
BMW 420i Coupé
Environmental Impact
149.7 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).
121.2 kWh
ALPINA B4 S Bi-Turbo Coupé
149.7 kWh
121.2 kWh
BMW 420i Coupé
Euro 6c (NEFZ)
Emission Standard
Euro 6d-TEMP-EVAP-ISC (WLTP)
180 g/km (NEFZ)
CO2 Emissions
167 g/km (WLTP)

Practical Convenience

ALPINA B4 S Bi-Turbo Coupé
BMW 420i Coupé
2
Doors
2
4
No. of Seats
4
445 kg
Maximum Payload
445 kg
445 L
Boot Capacity
445 L
No data
Boot Capacity (Seats Down)
No data