The Comparative Analysis :

ALPINA B4 Bi-Turbo Coupé Switch-Tronic (14 - 17) vs. BMW 420i Coupé Steptronic (16 - 17)

€ 69,800
ALPINA B4 Bi-Turbo Coupé Switch-Tronic (14 - 17) ALPINA B4 Bi-Turbo Coupé
€ 39,700
 BMW 420i Coupé Steptronic (16 - 17) BMW 420i Coupé
€ 69,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 39,700

ⓘ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 ALPINA B4 Bi-Turbo Coupé is 0.1 inches longer and 0.2 inches lower.
ALPINA B4 Bi-Turbo Coupé
BMW 420i Coupé
54.1
Blueprint ALPINA B4 Bi-Turbo Coupé Switch-Tronic (14 - 17)
71.9
79.7
54.2
Blueprint BMW 420i Coupé Steptronic (16 - 17)
71.9
79.4
71.9 in
Width
71.9 in
79.7 in
Width Incl. Mirrors
79.4 in
54.1 in
Height
54.2 in
Blueprint ALPINA B4 Bi-Turbo Coupé Switch-Tronic (14 - 17)
110.6
182.7
Blueprint BMW 420i Coupé Steptronic (16 - 17)
110.6
182.6
182.7 in
Length
182.6 in
110.6 in
Wheelbase
110.6 in

Vehicle Weight

ALPINA B4 Bi-Turbo Coupé
BMW 420i Coupé
3726 lb
Curb Weight
3461 lb
4707 lb
Gross Vehicle
Weight
4442 lb
ALPINA B4 Bi-Turbo Coupé Switch-Tronic (14 - 17)
Weight Difference:
265 lb
7.11 %
BMW 420i Coupé Steptronic (16 - 17)

General

ALPINA B4 Bi-Turbo Coupé
BMW 420i Coupé
F32
Generation
F32
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
8-speed automatic transmission

Engine

ALPINA B4 Bi-Turbo Coupé
BMW 420i Coupé
Straight-six gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
Straight-four gasoline engine with tur­bo­charger
Engine Series
BMW B48
N55-R20
Engine Code
B48-B20
4
Valves
4
6
Cylinders
4
3 L / 147 cu in
Displacement
2 L / 98 cu in
404 hp
at 5500 rpm
Power
181 hp
at 5000 rpm
ALPINA B4 Bi-Turbo Coupé
404 hp
181 hp
BMW 420i Coupé
443 lb‑ft
at 3000 rpm
Max. Torque
199 lb‑ft
at 1350 rpm
ALPINA B4 Bi-Turbo Coupé
443 lb‑ft
199 lb‑ft
BMW 420i Coupé

Performance

ALPINA B4 Bi-Turbo Coupé
BMW 420i Coupé
188 mph
Maximum Speed
147 mph
4.2 sec
Acceleration 0 to 62 mph
7.5 sec
62 mph 62
mph

190 ft
0.000 sec

ALPINA B4 Bi-Turbo Coupé

62 mph 62
mph

341 ft
0.000 sec

BMW 420i Coupé

▶ REPLAY
9.22 lb/hp
Weight-to-Power Ratio
19.12 lb/hp
ALPINA B4 Bi-Turbo Coupé
9.22 lb/hp
19.12 lb/hp
BMW 420i Coupé

Fuel Economy / Emissions

ALPINA B4 Bi-Turbo Coupé
BMW 420i Coupé
Fuel Economy
31 mpg
combined
43 mpg
ALPINA B4 Bi-Turbo Coupé
31 mpg
43 mpg
BMW 420i Coupé
23 mpg
city
33 mpg
No data
highway
No data
Kraftstoffanzeige
15.9 gal
Fuel Tank Capacity
15.9 gal
Kraftstoffanzeige
490 mi
Range
678 mi
ALPINA B4 Bi-Turbo Coupé
490 mi
678 mi
BMW 420i Coupé
Environmental Impact
144 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).
104.1 kWh
ALPINA B4 Bi-Turbo Coupé
144 kWh
104.1 kWh
BMW 420i Coupé
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
285 g/mi (NEFZ)
CO2 Emissions
204 g/mi (NEFZ)

Practical Convenience

ALPINA B4 Bi-Turbo Coupé
BMW 420i Coupé
2
Doors
2
4
No. of Seats
4
981 lb
Maximum Payload
981 lb
12.6 cu ft
Trunk Volume
12.6 cu ft
No data
Cargo Volume (Seats Down)
No data